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Remove BitmapScan support in DecompressChunk

Browse Source 
We don't want to support BitmapScans below DecompressChunk
as this adds additional complexity to support and there
is little benefit in doing so.
This fixes a bug that can happen when we have a parameterized
BitmapScan that is parameterized on a compressed column and
will lead to an execution failure with an error regarding
incorrect attribute types in the expression.
This commit is contained in:
Sven Klemm 2022-11-01 10:25:46 +01:00 committed by Sven Klemm
parent bfef3173bc
commit 9744b4f3bc
9 changed files with 100 additions and 226 deletions
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3
CHANGELOG.md
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@ -30,8 +30,9 @@ argument or resolve the type ambiguity by casting to the intended type.
* #4823 Fix a crash that could occur when using nested user-defined functions with hypertables.
**Thanks**
* @jvanns for reporting hypertable FK reference to vanilla PostgreSQL partitioned table doesn't seem to work
* @jflambert for reporting a crash with nested user-defined functions.
* @jvanns for reporting hypertable FK reference to vanilla PostgreSQL partitioned table doesn't seem to work
* @xvaara for helping reproduce a bug with bitmap scans in transparent decompression
## 2.8.1 (2022-10-06)

11
tsl/src/nodes/decompress_chunk/decompress_chunk.c
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@ -425,6 +425,17 @@ ts_decompress_chunk_generate_paths(PlannerInfo *root, RelOptInfo *chunk_rel, Hyp
Path *child_path = lfirst(lc);
DecompressChunkPath *path;
/*
* We skip any BitmapScan paths here as supporting those
* would require fixing up the internal scan. Since we
* currently do not do this BitmapScans would be generated
* when we have a parameterized path on a compressed column
* that would have invalid references due to our
* EquivalenceClasses.
*/
if (IsA(child_path, BitmapHeapPath))
continue;
/*
* Filter out all paths that try to JOIN the compressed chunk on the
* hypertable or the uncompressed chunk

13
tsl/src/nodes/decompress_chunk/planner.c
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@ -394,19 +394,6 @@ decompress_chunk_plan_create(PlannerInfo *root, RelOptInfo *rel, CustomPath *pat
}
indexplan->qual = indexqual;
}
else if (IsA(compressed_path, BitmapHeapPath))
{
/* To increase performance, we should remove quals that are redundant with the Bitmap scan
* Code from create_bitmap_scan_plan does something similar, and could be used as a starting
* point.
*/
foreach (lc, clauses)
{
RestrictInfo *rinfo = lfirst_node(RestrictInfo, lc);
decompress_plan->scan.plan.qual =
lappend(decompress_plan->scan.plan.qual, rinfo->clause);
}
}
else
{
foreach (lc, clauses)

95
tsl/test/expected/transparent_decompression-12.out
View File

@ -2128,9 +2128,6 @@ WHERE device_id IN (
(18 rows)
RESET seq_page_cost;
-- force a BitmapHeapScan
SET enable_indexscan TO FALSE;
SET enable_seqscan TO FALSE;
:PREFIX_VERBOSE
SELECT device_id_peer
FROM :TEST_TABLE
@ -2141,25 +2138,21 @@ WHERE device_id IN (
Append (actual rows=1368 loops=1)
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_1_1_chunk (actual rows=360 loops=1)
Output: _hyper_1_1_chunk.device_id_peer
-> Bitmap Heap Scan on _timescaledb_internal.compress_hyper_5_15_chunk (actual rows=1 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_5_15_chunk (actual rows=1 loops=1)
Output: compress_hyper_5_15_chunk."time", compress_hyper_5_15_chunk.device_id, compress_hyper_5_15_chunk.device_id_peer, compress_hyper_5_15_chunk.v0, compress_hyper_5_15_chunk.v1, compress_hyper_5_15_chunk.v2, compress_hyper_5_15_chunk.v3, compress_hyper_5_15_chunk._ts_meta_count, compress_hyper_5_15_chunk._ts_meta_sequence_num, compress_hyper_5_15_chunk._ts_meta_min_3, compress_hyper_5_15_chunk._ts_meta_max_3, compress_hyper_5_15_chunk._ts_meta_min_1, compress_hyper_5_15_chunk._ts_meta_max_1, compress_hyper_5_15_chunk._ts_meta_min_2, compress_hyper_5_15_chunk._ts_meta_max_2
Recheck Cond: (compress_hyper_5_15_chunk.device_id = 1)
Heap Blocks: exact=1
-> Bitmap Index Scan on compress_hyper_5_15_chunk_c_index_2 (actual rows=1 loops=1)
Index Cond: (compress_hyper_5_15_chunk.device_id = 1)
Filter: (compress_hyper_5_15_chunk.device_id = 1)
Rows Removed by Filter: 4
-> Seq Scan on _timescaledb_internal._hyper_1_2_chunk (actual rows=504 loops=1)
Output: _hyper_1_2_chunk.device_id_peer
Filter: (_hyper_1_2_chunk.device_id = 1)
Rows Removed by Filter: 2016
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_1_3_chunk (actual rows=504 loops=1)
Output: _hyper_1_3_chunk.device_id_peer
-> Bitmap Heap Scan on _timescaledb_internal.compress_hyper_5_16_chunk (actual rows=1 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_5_16_chunk (actual rows=1 loops=1)
Output: compress_hyper_5_16_chunk."time", compress_hyper_5_16_chunk.device_id, compress_hyper_5_16_chunk.device_id_peer, compress_hyper_5_16_chunk.v0, compress_hyper_5_16_chunk.v1, compress_hyper_5_16_chunk.v2, compress_hyper_5_16_chunk.v3, compress_hyper_5_16_chunk._ts_meta_count, compress_hyper_5_16_chunk._ts_meta_sequence_num, compress_hyper_5_16_chunk._ts_meta_min_3, compress_hyper_5_16_chunk._ts_meta_max_3, compress_hyper_5_16_chunk._ts_meta_min_1, compress_hyper_5_16_chunk._ts_meta_max_1, compress_hyper_5_16_chunk._ts_meta_min_2, compress_hyper_5_16_chunk._ts_meta_max_2
Recheck Cond: (compress_hyper_5_16_chunk.device_id = 1)
Heap Blocks: exact=1
-> Bitmap Index Scan on compress_hyper_5_16_chunk_c_index_2 (actual rows=1 loops=1)
Index Cond: (compress_hyper_5_16_chunk.device_id = 1)
(21 rows)
Filter: (compress_hyper_5_16_chunk.device_id = 1)
Rows Removed by Filter: 4
(17 rows)
:PREFIX_VERBOSE
SELECT device_id_peer
@ -2183,12 +2176,9 @@ WHERE device_id IN (
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_1_1_chunk (actual rows=360 loops=2)
Output: _hyper_1_1_chunk.device_id_peer, _hyper_1_1_chunk.device_id
Filter: ("*VALUES*".column1 = _hyper_1_1_chunk.device_id)
-> Bitmap Heap Scan on _timescaledb_internal.compress_hyper_5_15_chunk (actual rows=1 loops=2)
-> Index Scan using compress_hyper_5_15_chunk_c_index_2 on _timescaledb_internal.compress_hyper_5_15_chunk (actual rows=1 loops=2)
Output: compress_hyper_5_15_chunk."time", compress_hyper_5_15_chunk.device_id, compress_hyper_5_15_chunk.device_id_peer, compress_hyper_5_15_chunk.v0, compress_hyper_5_15_chunk.v1, compress_hyper_5_15_chunk.v2, compress_hyper_5_15_chunk.v3, compress_hyper_5_15_chunk._ts_meta_count, compress_hyper_5_15_chunk._ts_meta_sequence_num, compress_hyper_5_15_chunk._ts_meta_min_3, compress_hyper_5_15_chunk._ts_meta_max_3, compress_hyper_5_15_chunk._ts_meta_min_1, compress_hyper_5_15_chunk._ts_meta_max_1, compress_hyper_5_15_chunk._ts_meta_min_2, compress_hyper_5_15_chunk._ts_meta_max_2
Recheck Cond: (compress_hyper_5_15_chunk.device_id = "*VALUES*".column1)
Heap Blocks: exact=2
-> Bitmap Index Scan on compress_hyper_5_15_chunk_c_index_2 (actual rows=1 loops=2)
Index Cond: (compress_hyper_5_15_chunk.device_id = "*VALUES*".column1)
Index Cond: (compress_hyper_5_15_chunk.device_id = "*VALUES*".column1)
-> Seq Scan on _timescaledb_internal._hyper_1_2_chunk (actual rows=504 loops=2)
Output: _hyper_1_2_chunk.device_id_peer, _hyper_1_2_chunk.device_id
Filter: ("*VALUES*".column1 = _hyper_1_2_chunk.device_id)
@ -2196,16 +2186,11 @@ WHERE device_id IN (
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_1_3_chunk (actual rows=504 loops=2)
Output: _hyper_1_3_chunk.device_id_peer, _hyper_1_3_chunk.device_id
Filter: ("*VALUES*".column1 = _hyper_1_3_chunk.device_id)
-> Bitmap Heap Scan on _timescaledb_internal.compress_hyper_5_16_chunk (actual rows=1 loops=2)
-> Index Scan using compress_hyper_5_16_chunk_c_index_2 on _timescaledb_internal.compress_hyper_5_16_chunk (actual rows=1 loops=2)
Output: compress_hyper_5_16_chunk."time", compress_hyper_5_16_chunk.device_id, compress_hyper_5_16_chunk.device_id_peer, compress_hyper_5_16_chunk.v0, compress_hyper_5_16_chunk.v1, compress_hyper_5_16_chunk.v2, compress_hyper_5_16_chunk.v3, compress_hyper_5_16_chunk._ts_meta_count, compress_hyper_5_16_chunk._ts_meta_sequence_num, compress_hyper_5_16_chunk._ts_meta_min_3, compress_hyper_5_16_chunk._ts_meta_max_3, compress_hyper_5_16_chunk._ts_meta_min_1, compress_hyper_5_16_chunk._ts_meta_max_1, compress_hyper_5_16_chunk._ts_meta_min_2, compress_hyper_5_16_chunk._ts_meta_max_2
Recheck Cond: (compress_hyper_5_16_chunk.device_id = "*VALUES*".column1)
Heap Blocks: exact=2
-> Bitmap Index Scan on compress_hyper_5_16_chunk_c_index_2 (actual rows=1 loops=2)
Index Cond: (compress_hyper_5_16_chunk.device_id = "*VALUES*".column1)
(33 rows)
Index Cond: (compress_hyper_5_16_chunk.device_id = "*VALUES*".column1)
(27 rows)
SET enable_indexscan TO TRUE;
SET enable_seqscan TO TRUE;
-- test view
CREATE OR REPLACE VIEW compressed_view AS
SELECT time,
@ -5813,9 +5798,6 @@ WHERE device_id IN (
(52 rows)
RESET seq_page_cost;
-- force a BitmapHeapScan
SET enable_indexscan TO FALSE;
SET enable_seqscan TO FALSE;
:PREFIX_VERBOSE
SELECT device_id_peer
FROM :TEST_TABLE
@ -5826,27 +5808,18 @@ WHERE device_id IN (
Append (actual rows=1368 loops=1)
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_2_4_chunk (actual rows=360 loops=1)
Output: _hyper_2_4_chunk.device_id_peer
-> Bitmap Heap Scan on _timescaledb_internal.compress_hyper_6_17_chunk (actual rows=1 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_6_17_chunk (actual rows=1 loops=1)
Output: compress_hyper_6_17_chunk."time", compress_hyper_6_17_chunk.device_id, compress_hyper_6_17_chunk.device_id_peer, compress_hyper_6_17_chunk.v0, compress_hyper_6_17_chunk.v1, compress_hyper_6_17_chunk.v2, compress_hyper_6_17_chunk.v3, compress_hyper_6_17_chunk._ts_meta_count, compress_hyper_6_17_chunk._ts_meta_sequence_num, compress_hyper_6_17_chunk._ts_meta_min_3, compress_hyper_6_17_chunk._ts_meta_max_3, compress_hyper_6_17_chunk._ts_meta_min_1, compress_hyper_6_17_chunk._ts_meta_max_1, compress_hyper_6_17_chunk._ts_meta_min_2, compress_hyper_6_17_chunk._ts_meta_max_2
Recheck Cond: (compress_hyper_6_17_chunk.device_id = 1)
Heap Blocks: exact=1
-> Bitmap Index Scan on compress_hyper_6_17_chunk_c_space_index_2 (actual rows=1 loops=1)
Index Cond: (compress_hyper_6_17_chunk.device_id = 1)
-> Bitmap Heap Scan on _timescaledb_internal._hyper_2_7_chunk (actual rows=504 loops=1)
Filter: (compress_hyper_6_17_chunk.device_id = 1)
-> Seq Scan on _timescaledb_internal._hyper_2_7_chunk (actual rows=504 loops=1)
Output: _hyper_2_7_chunk.device_id_peer
Recheck Cond: (_hyper_2_7_chunk.device_id = 1)
Heap Blocks: exact=5
-> Bitmap Index Scan on _hyper_2_7_chunk_metrics_space_device_id_device_id_peer_v0_v1_2 (actual rows=504 loops=1)
Index Cond: (_hyper_2_7_chunk.device_id = 1)
Filter: (_hyper_2_7_chunk.device_id = 1)
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_2_10_chunk (actual rows=504 loops=1)
Output: _hyper_2_10_chunk.device_id_peer
-> Bitmap Heap Scan on _timescaledb_internal.compress_hyper_6_20_chunk (actual rows=1 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_6_20_chunk (actual rows=1 loops=1)
Output: compress_hyper_6_20_chunk."time", compress_hyper_6_20_chunk.device_id, compress_hyper_6_20_chunk.device_id_peer, compress_hyper_6_20_chunk.v0, compress_hyper_6_20_chunk.v1, compress_hyper_6_20_chunk.v2, compress_hyper_6_20_chunk.v3, compress_hyper_6_20_chunk._ts_meta_count, compress_hyper_6_20_chunk._ts_meta_sequence_num, compress_hyper_6_20_chunk._ts_meta_min_3, compress_hyper_6_20_chunk._ts_meta_max_3, compress_hyper_6_20_chunk._ts_meta_min_1, compress_hyper_6_20_chunk._ts_meta_max_1, compress_hyper_6_20_chunk._ts_meta_min_2, compress_hyper_6_20_chunk._ts_meta_max_2
Recheck Cond: (compress_hyper_6_20_chunk.device_id = 1)
Heap Blocks: exact=1
-> Bitmap Index Scan on compress_hyper_6_20_chunk_c_space_index_2 (actual rows=1 loops=1)
Index Cond: (compress_hyper_6_20_chunk.device_id = 1)
(23 rows)
Filter: (compress_hyper_6_20_chunk.device_id = 1)
(14 rows)
:PREFIX_VERBOSE
SELECT device_id_peer
@ -5862,49 +5835,39 @@ WHERE device_id IN (
-> Append (actual rows=6840 loops=1)
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_2_4_chunk (actual rows=360 loops=1)
Output: _hyper_2_4_chunk.device_id_peer, _hyper_2_4_chunk.device_id
-> Index Scan using compress_hyper_6_17_chunk_c_space_index_2 on _timescaledb_internal.compress_hyper_6_17_chunk (actual rows=1 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_6_17_chunk (actual rows=1 loops=1)
Output: compress_hyper_6_17_chunk."time", compress_hyper_6_17_chunk.device_id, compress_hyper_6_17_chunk.device_id_peer, compress_hyper_6_17_chunk.v0, compress_hyper_6_17_chunk.v1, compress_hyper_6_17_chunk.v2, compress_hyper_6_17_chunk.v3, compress_hyper_6_17_chunk._ts_meta_count, compress_hyper_6_17_chunk._ts_meta_sequence_num, compress_hyper_6_17_chunk._ts_meta_min_3, compress_hyper_6_17_chunk._ts_meta_max_3, compress_hyper_6_17_chunk._ts_meta_min_1, compress_hyper_6_17_chunk._ts_meta_max_1, compress_hyper_6_17_chunk._ts_meta_min_2, compress_hyper_6_17_chunk._ts_meta_max_2
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_2_5_chunk (actual rows=1080 loops=1)
Output: _hyper_2_5_chunk.device_id_peer, _hyper_2_5_chunk.device_id
-> Index Scan using compress_hyper_6_18_chunk_c_space_index_2 on _timescaledb_internal.compress_hyper_6_18_chunk (actual rows=3 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_6_18_chunk (actual rows=3 loops=1)
Output: compress_hyper_6_18_chunk."time", compress_hyper_6_18_chunk.device_id, compress_hyper_6_18_chunk.device_id_peer, compress_hyper_6_18_chunk.v0, compress_hyper_6_18_chunk.v1, compress_hyper_6_18_chunk.v2, compress_hyper_6_18_chunk.v3, compress_hyper_6_18_chunk._ts_meta_count, compress_hyper_6_18_chunk._ts_meta_sequence_num, compress_hyper_6_18_chunk._ts_meta_min_3, compress_hyper_6_18_chunk._ts_meta_max_3, compress_hyper_6_18_chunk._ts_meta_min_1, compress_hyper_6_18_chunk._ts_meta_max_1, compress_hyper_6_18_chunk._ts_meta_min_2, compress_hyper_6_18_chunk._ts_meta_max_2
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_2_6_chunk (actual rows=360 loops=1)
Output: _hyper_2_6_chunk.device_id_peer, _hyper_2_6_chunk.device_id
-> Index Scan using compress_hyper_6_19_chunk_c_space_index_2 on _timescaledb_internal.compress_hyper_6_19_chunk (actual rows=1 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_6_19_chunk (actual rows=1 loops=1)
Output: compress_hyper_6_19_chunk."time", compress_hyper_6_19_chunk.device_id, compress_hyper_6_19_chunk.device_id_peer, compress_hyper_6_19_chunk.v0, compress_hyper_6_19_chunk.v1, compress_hyper_6_19_chunk.v2, compress_hyper_6_19_chunk.v3, compress_hyper_6_19_chunk._ts_meta_count, compress_hyper_6_19_chunk._ts_meta_sequence_num, compress_hyper_6_19_chunk._ts_meta_min_3, compress_hyper_6_19_chunk._ts_meta_max_3, compress_hyper_6_19_chunk._ts_meta_min_1, compress_hyper_6_19_chunk._ts_meta_max_1, compress_hyper_6_19_chunk._ts_meta_min_2, compress_hyper_6_19_chunk._ts_meta_max_2
-> Bitmap Heap Scan on _timescaledb_internal._hyper_2_7_chunk (actual rows=504 loops=1)
-> Seq Scan on _timescaledb_internal._hyper_2_7_chunk (actual rows=504 loops=1)
Output: _hyper_2_7_chunk.device_id_peer, _hyper_2_7_chunk.device_id
Heap Blocks: exact=5
-> Bitmap Index Scan on _hyper_2_7_chunk_metrics_space_device_id_device_id_peer_v0_v1_2 (actual rows=504 loops=1)
-> Bitmap Heap Scan on _timescaledb_internal._hyper_2_8_chunk (actual rows=1512 loops=1)
-> Seq Scan on _timescaledb_internal._hyper_2_8_chunk (actual rows=1512 loops=1)
Output: _hyper_2_8_chunk.device_id_peer, _hyper_2_8_chunk.device_id
Heap Blocks: exact=13
-> Bitmap Index Scan on _hyper_2_8_chunk_metrics_space_device_id_device_id_peer_v0_v1_2 (actual rows=1512 loops=1)
-> Bitmap Heap Scan on _timescaledb_internal._hyper_2_9_chunk (actual rows=504 loops=1)
-> Seq Scan on _timescaledb_internal._hyper_2_9_chunk (actual rows=504 loops=1)
Output: _hyper_2_9_chunk.device_id_peer, _hyper_2_9_chunk.device_id
Heap Blocks: exact=5
-> Bitmap Index Scan on _hyper_2_9_chunk_metrics_space_device_id_device_id_peer_v0_v1_2 (actual rows=504 loops=1)
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_2_10_chunk (actual rows=504 loops=1)
Output: _hyper_2_10_chunk.device_id_peer, _hyper_2_10_chunk.device_id
-> Index Scan using compress_hyper_6_20_chunk_c_space_index_2 on _timescaledb_internal.compress_hyper_6_20_chunk (actual rows=1 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_6_20_chunk (actual rows=1 loops=1)
Output: compress_hyper_6_20_chunk."time", compress_hyper_6_20_chunk.device_id, compress_hyper_6_20_chunk.device_id_peer, compress_hyper_6_20_chunk.v0, compress_hyper_6_20_chunk.v1, compress_hyper_6_20_chunk.v2, compress_hyper_6_20_chunk.v3, compress_hyper_6_20_chunk._ts_meta_count, compress_hyper_6_20_chunk._ts_meta_sequence_num, compress_hyper_6_20_chunk._ts_meta_min_3, compress_hyper_6_20_chunk._ts_meta_max_3, compress_hyper_6_20_chunk._ts_meta_min_1, compress_hyper_6_20_chunk._ts_meta_max_1, compress_hyper_6_20_chunk._ts_meta_min_2, compress_hyper_6_20_chunk._ts_meta_max_2
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_2_11_chunk (actual rows=1512 loops=1)
Output: _hyper_2_11_chunk.device_id_peer, _hyper_2_11_chunk.device_id
-> Index Scan using compress_hyper_6_21_chunk_c_space_index_2 on _timescaledb_internal.compress_hyper_6_21_chunk (actual rows=3 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_6_21_chunk (actual rows=3 loops=1)
Output: compress_hyper_6_21_chunk."time", compress_hyper_6_21_chunk.device_id, compress_hyper_6_21_chunk.device_id_peer, compress_hyper_6_21_chunk.v0, compress_hyper_6_21_chunk.v1, compress_hyper_6_21_chunk.v2, compress_hyper_6_21_chunk.v3, compress_hyper_6_21_chunk._ts_meta_count, compress_hyper_6_21_chunk._ts_meta_sequence_num, compress_hyper_6_21_chunk._ts_meta_min_3, compress_hyper_6_21_chunk._ts_meta_max_3, compress_hyper_6_21_chunk._ts_meta_min_1, compress_hyper_6_21_chunk._ts_meta_max_1, compress_hyper_6_21_chunk._ts_meta_min_2, compress_hyper_6_21_chunk._ts_meta_max_2
-> Bitmap Heap Scan on _timescaledb_internal._hyper_2_12_chunk (actual rows=504 loops=1)
-> Seq Scan on _timescaledb_internal._hyper_2_12_chunk (actual rows=504 loops=1)
Output: _hyper_2_12_chunk.device_id_peer, _hyper_2_12_chunk.device_id
Heap Blocks: exact=5
-> Bitmap Index Scan on _hyper_2_12_chunk_metrics_space_device_id_device_id_peer_v0_v_2 (actual rows=504 loops=1)
-> Hash (actual rows=2 loops=1)
Output: "*VALUES*".column1
Buckets: 1024 Batches: 1
-> Values Scan on "*VALUES*" (actual rows=2 loops=1)
Output: "*VALUES*".column1
(45 rows)
(37 rows)
SET enable_indexscan TO TRUE;
SET enable_seqscan TO TRUE;
-- test view
CREATE OR REPLACE VIEW compressed_view AS
SELECT time,

95
tsl/test/expected/transparent_decompression-13.out
View File

@ -2268,9 +2268,6 @@ WHERE device_id IN (
(18 rows)
RESET seq_page_cost;
-- force a BitmapHeapScan
SET enable_indexscan TO FALSE;
SET enable_seqscan TO FALSE;
:PREFIX_VERBOSE
SELECT device_id_peer
FROM :TEST_TABLE
@ -2281,25 +2278,21 @@ WHERE device_id IN (
Append (actual rows=1368 loops=1)
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_1_1_chunk (actual rows=360 loops=1)
Output: _hyper_1_1_chunk.device_id_peer
-> Bitmap Heap Scan on _timescaledb_internal.compress_hyper_5_15_chunk (actual rows=1 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_5_15_chunk (actual rows=1 loops=1)
Output: compress_hyper_5_15_chunk."time", compress_hyper_5_15_chunk.device_id, compress_hyper_5_15_chunk.device_id_peer, compress_hyper_5_15_chunk.v0, compress_hyper_5_15_chunk.v1, compress_hyper_5_15_chunk.v2, compress_hyper_5_15_chunk.v3, compress_hyper_5_15_chunk._ts_meta_count, compress_hyper_5_15_chunk._ts_meta_sequence_num, compress_hyper_5_15_chunk._ts_meta_min_3, compress_hyper_5_15_chunk._ts_meta_max_3, compress_hyper_5_15_chunk._ts_meta_min_1, compress_hyper_5_15_chunk._ts_meta_max_1, compress_hyper_5_15_chunk._ts_meta_min_2, compress_hyper_5_15_chunk._ts_meta_max_2
Recheck Cond: (compress_hyper_5_15_chunk.device_id = 1)
Heap Blocks: exact=1
-> Bitmap Index Scan on compress_hyper_5_15_chunk_c_index_2 (actual rows=1 loops=1)
Index Cond: (compress_hyper_5_15_chunk.device_id = 1)
Filter: (compress_hyper_5_15_chunk.device_id = 1)
Rows Removed by Filter: 4
-> Seq Scan on _timescaledb_internal._hyper_1_2_chunk (actual rows=504 loops=1)
Output: _hyper_1_2_chunk.device_id_peer
Filter: (_hyper_1_2_chunk.device_id = 1)
Rows Removed by Filter: 2016
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_1_3_chunk (actual rows=504 loops=1)
Output: _hyper_1_3_chunk.device_id_peer
-> Bitmap Heap Scan on _timescaledb_internal.compress_hyper_5_16_chunk (actual rows=1 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_5_16_chunk (actual rows=1 loops=1)
Output: compress_hyper_5_16_chunk."time", compress_hyper_5_16_chunk.device_id, compress_hyper_5_16_chunk.device_id_peer, compress_hyper_5_16_chunk.v0, compress_hyper_5_16_chunk.v1, compress_hyper_5_16_chunk.v2, compress_hyper_5_16_chunk.v3, compress_hyper_5_16_chunk._ts_meta_count, compress_hyper_5_16_chunk._ts_meta_sequence_num, compress_hyper_5_16_chunk._ts_meta_min_3, compress_hyper_5_16_chunk._ts_meta_max_3, compress_hyper_5_16_chunk._ts_meta_min_1, compress_hyper_5_16_chunk._ts_meta_max_1, compress_hyper_5_16_chunk._ts_meta_min_2, compress_hyper_5_16_chunk._ts_meta_max_2
Recheck Cond: (compress_hyper_5_16_chunk.device_id = 1)
Heap Blocks: exact=1
-> Bitmap Index Scan on compress_hyper_5_16_chunk_c_index_2 (actual rows=1 loops=1)
Index Cond: (compress_hyper_5_16_chunk.device_id = 1)
(21 rows)
Filter: (compress_hyper_5_16_chunk.device_id = 1)
Rows Removed by Filter: 4
(17 rows)
:PREFIX_VERBOSE
SELECT device_id_peer
@ -2323,12 +2316,9 @@ WHERE device_id IN (
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_1_1_chunk (actual rows=360 loops=2)
Output: _hyper_1_1_chunk.device_id_peer, _hyper_1_1_chunk.device_id
Filter: ("*VALUES*".column1 = _hyper_1_1_chunk.device_id)
-> Bitmap Heap Scan on _timescaledb_internal.compress_hyper_5_15_chunk (actual rows=1 loops=2)
-> Index Scan using compress_hyper_5_15_chunk_c_index_2 on _timescaledb_internal.compress_hyper_5_15_chunk (actual rows=1 loops=2)
Output: compress_hyper_5_15_chunk."time", compress_hyper_5_15_chunk.device_id, compress_hyper_5_15_chunk.device_id_peer, compress_hyper_5_15_chunk.v0, compress_hyper_5_15_chunk.v1, compress_hyper_5_15_chunk.v2, compress_hyper_5_15_chunk.v3, compress_hyper_5_15_chunk._ts_meta_count, compress_hyper_5_15_chunk._ts_meta_sequence_num, compress_hyper_5_15_chunk._ts_meta_min_3, compress_hyper_5_15_chunk._ts_meta_max_3, compress_hyper_5_15_chunk._ts_meta_min_1, compress_hyper_5_15_chunk._ts_meta_max_1, compress_hyper_5_15_chunk._ts_meta_min_2, compress_hyper_5_15_chunk._ts_meta_max_2
Recheck Cond: (compress_hyper_5_15_chunk.device_id = "*VALUES*".column1)
Heap Blocks: exact=2
-> Bitmap Index Scan on compress_hyper_5_15_chunk_c_index_2 (actual rows=1 loops=2)
Index Cond: (compress_hyper_5_15_chunk.device_id = "*VALUES*".column1)
Index Cond: (compress_hyper_5_15_chunk.device_id = "*VALUES*".column1)
-> Seq Scan on _timescaledb_internal._hyper_1_2_chunk (actual rows=504 loops=2)
Output: _hyper_1_2_chunk.device_id_peer, _hyper_1_2_chunk.device_id
Filter: ("*VALUES*".column1 = _hyper_1_2_chunk.device_id)
@ -2336,16 +2326,11 @@ WHERE device_id IN (
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_1_3_chunk (actual rows=504 loops=2)
Output: _hyper_1_3_chunk.device_id_peer, _hyper_1_3_chunk.device_id
Filter: ("*VALUES*".column1 = _hyper_1_3_chunk.device_id)
-> Bitmap Heap Scan on _timescaledb_internal.compress_hyper_5_16_chunk (actual rows=1 loops=2)
-> Index Scan using compress_hyper_5_16_chunk_c_index_2 on _timescaledb_internal.compress_hyper_5_16_chunk (actual rows=1 loops=2)
Output: compress_hyper_5_16_chunk."time", compress_hyper_5_16_chunk.device_id, compress_hyper_5_16_chunk.device_id_peer, compress_hyper_5_16_chunk.v0, compress_hyper_5_16_chunk.v1, compress_hyper_5_16_chunk.v2, compress_hyper_5_16_chunk.v3, compress_hyper_5_16_chunk._ts_meta_count, compress_hyper_5_16_chunk._ts_meta_sequence_num, compress_hyper_5_16_chunk._ts_meta_min_3, compress_hyper_5_16_chunk._ts_meta_max_3, compress_hyper_5_16_chunk._ts_meta_min_1, compress_hyper_5_16_chunk._ts_meta_max_1, compress_hyper_5_16_chunk._ts_meta_min_2, compress_hyper_5_16_chunk._ts_meta_max_2
Recheck Cond: (compress_hyper_5_16_chunk.device_id = "*VALUES*".column1)
Heap Blocks: exact=2
-> Bitmap Index Scan on compress_hyper_5_16_chunk_c_index_2 (actual rows=1 loops=2)
Index Cond: (compress_hyper_5_16_chunk.device_id = "*VALUES*".column1)
(33 rows)
Index Cond: (compress_hyper_5_16_chunk.device_id = "*VALUES*".column1)
(27 rows)
SET enable_indexscan TO TRUE;
SET enable_seqscan TO TRUE;
-- test view
CREATE OR REPLACE VIEW compressed_view AS
SELECT time,
@ -6654,9 +6639,6 @@ WHERE device_id IN (
(52 rows)
RESET seq_page_cost;
-- force a BitmapHeapScan
SET enable_indexscan TO FALSE;
SET enable_seqscan TO FALSE;
:PREFIX_VERBOSE
SELECT device_id_peer
FROM :TEST_TABLE
@ -6667,27 +6649,18 @@ WHERE device_id IN (
Append (actual rows=1368 loops=1)
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_2_4_chunk (actual rows=360 loops=1)
Output: _hyper_2_4_chunk.device_id_peer
-> Bitmap Heap Scan on _timescaledb_internal.compress_hyper_6_17_chunk (actual rows=1 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_6_17_chunk (actual rows=1 loops=1)
Output: compress_hyper_6_17_chunk."time", compress_hyper_6_17_chunk.device_id, compress_hyper_6_17_chunk.device_id_peer, compress_hyper_6_17_chunk.v0, compress_hyper_6_17_chunk.v1, compress_hyper_6_17_chunk.v2, compress_hyper_6_17_chunk.v3, compress_hyper_6_17_chunk._ts_meta_count, compress_hyper_6_17_chunk._ts_meta_sequence_num, compress_hyper_6_17_chunk._ts_meta_min_3, compress_hyper_6_17_chunk._ts_meta_max_3, compress_hyper_6_17_chunk._ts_meta_min_1, compress_hyper_6_17_chunk._ts_meta_max_1, compress_hyper_6_17_chunk._ts_meta_min_2, compress_hyper_6_17_chunk._ts_meta_max_2
Recheck Cond: (compress_hyper_6_17_chunk.device_id = 1)
Heap Blocks: exact=1
-> Bitmap Index Scan on compress_hyper_6_17_chunk_c_space_index_2 (actual rows=1 loops=1)
Index Cond: (compress_hyper_6_17_chunk.device_id = 1)
-> Bitmap Heap Scan on _timescaledb_internal._hyper_2_7_chunk (actual rows=504 loops=1)
Filter: (compress_hyper_6_17_chunk.device_id = 1)
-> Seq Scan on _timescaledb_internal._hyper_2_7_chunk (actual rows=504 loops=1)
Output: _hyper_2_7_chunk.device_id_peer
Recheck Cond: (_hyper_2_7_chunk.device_id = 1)
Heap Blocks: exact=5
-> Bitmap Index Scan on _hyper_2_7_chunk_metrics_space_device_id_device_id_peer_v0_v1_2 (actual rows=504 loops=1)
Index Cond: (_hyper_2_7_chunk.device_id = 1)
Filter: (_hyper_2_7_chunk.device_id = 1)
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_2_10_chunk (actual rows=504 loops=1)
Output: _hyper_2_10_chunk.device_id_peer
-> Bitmap Heap Scan on _timescaledb_internal.compress_hyper_6_20_chunk (actual rows=1 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_6_20_chunk (actual rows=1 loops=1)
Output: compress_hyper_6_20_chunk."time", compress_hyper_6_20_chunk.device_id, compress_hyper_6_20_chunk.device_id_peer, compress_hyper_6_20_chunk.v0, compress_hyper_6_20_chunk.v1, compress_hyper_6_20_chunk.v2, compress_hyper_6_20_chunk.v3, compress_hyper_6_20_chunk._ts_meta_count, compress_hyper_6_20_chunk._ts_meta_sequence_num, compress_hyper_6_20_chunk._ts_meta_min_3, compress_hyper_6_20_chunk._ts_meta_max_3, compress_hyper_6_20_chunk._ts_meta_min_1, compress_hyper_6_20_chunk._ts_meta_max_1, compress_hyper_6_20_chunk._ts_meta_min_2, compress_hyper_6_20_chunk._ts_meta_max_2
Recheck Cond: (compress_hyper_6_20_chunk.device_id = 1)
Heap Blocks: exact=1
-> Bitmap Index Scan on compress_hyper_6_20_chunk_c_space_index_2 (actual rows=1 loops=1)
Index Cond: (compress_hyper_6_20_chunk.device_id = 1)
(23 rows)
Filter: (compress_hyper_6_20_chunk.device_id = 1)
(14 rows)
:PREFIX_VERBOSE
SELECT device_id_peer
@ -6703,49 +6676,39 @@ WHERE device_id IN (
-> Append (actual rows=6840 loops=1)
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_2_4_chunk (actual rows=360 loops=1)
Output: _hyper_2_4_chunk.device_id_peer, _hyper_2_4_chunk.device_id
-> Index Scan using compress_hyper_6_17_chunk_c_space_index_2 on _timescaledb_internal.compress_hyper_6_17_chunk (actual rows=1 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_6_17_chunk (actual rows=1 loops=1)
Output: compress_hyper_6_17_chunk."time", compress_hyper_6_17_chunk.device_id, compress_hyper_6_17_chunk.device_id_peer, compress_hyper_6_17_chunk.v0, compress_hyper_6_17_chunk.v1, compress_hyper_6_17_chunk.v2, compress_hyper_6_17_chunk.v3, compress_hyper_6_17_chunk._ts_meta_count, compress_hyper_6_17_chunk._ts_meta_sequence_num, compress_hyper_6_17_chunk._ts_meta_min_3, compress_hyper_6_17_chunk._ts_meta_max_3, compress_hyper_6_17_chunk._ts_meta_min_1, compress_hyper_6_17_chunk._ts_meta_max_1, compress_hyper_6_17_chunk._ts_meta_min_2, compress_hyper_6_17_chunk._ts_meta_max_2
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_2_5_chunk (actual rows=1080 loops=1)
Output: _hyper_2_5_chunk.device_id_peer, _hyper_2_5_chunk.device_id
-> Index Scan using compress_hyper_6_18_chunk_c_space_index_2 on _timescaledb_internal.compress_hyper_6_18_chunk (actual rows=3 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_6_18_chunk (actual rows=3 loops=1)
Output: compress_hyper_6_18_chunk."time", compress_hyper_6_18_chunk.device_id, compress_hyper_6_18_chunk.device_id_peer, compress_hyper_6_18_chunk.v0, compress_hyper_6_18_chunk.v1, compress_hyper_6_18_chunk.v2, compress_hyper_6_18_chunk.v3, compress_hyper_6_18_chunk._ts_meta_count, compress_hyper_6_18_chunk._ts_meta_sequence_num, compress_hyper_6_18_chunk._ts_meta_min_3, compress_hyper_6_18_chunk._ts_meta_max_3, compress_hyper_6_18_chunk._ts_meta_min_1, compress_hyper_6_18_chunk._ts_meta_max_1, compress_hyper_6_18_chunk._ts_meta_min_2, compress_hyper_6_18_chunk._ts_meta_max_2
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_2_6_chunk (actual rows=360 loops=1)
Output: _hyper_2_6_chunk.device_id_peer, _hyper_2_6_chunk.device_id
-> Index Scan using compress_hyper_6_19_chunk_c_space_index_2 on _timescaledb_internal.compress_hyper_6_19_chunk (actual rows=1 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_6_19_chunk (actual rows=1 loops=1)
Output: compress_hyper_6_19_chunk."time", compress_hyper_6_19_chunk.device_id, compress_hyper_6_19_chunk.device_id_peer, compress_hyper_6_19_chunk.v0, compress_hyper_6_19_chunk.v1, compress_hyper_6_19_chunk.v2, compress_hyper_6_19_chunk.v3, compress_hyper_6_19_chunk._ts_meta_count, compress_hyper_6_19_chunk._ts_meta_sequence_num, compress_hyper_6_19_chunk._ts_meta_min_3, compress_hyper_6_19_chunk._ts_meta_max_3, compress_hyper_6_19_chunk._ts_meta_min_1, compress_hyper_6_19_chunk._ts_meta_max_1, compress_hyper_6_19_chunk._ts_meta_min_2, compress_hyper_6_19_chunk._ts_meta_max_2
-> Bitmap Heap Scan on _timescaledb_internal._hyper_2_7_chunk (actual rows=504 loops=1)
-> Seq Scan on _timescaledb_internal._hyper_2_7_chunk (actual rows=504 loops=1)
Output: _hyper_2_7_chunk.device_id_peer, _hyper_2_7_chunk.device_id
Heap Blocks: exact=5
-> Bitmap Index Scan on _hyper_2_7_chunk_metrics_space_device_id_device_id_peer_v0_v1_2 (actual rows=504 loops=1)
-> Bitmap Heap Scan on _timescaledb_internal._hyper_2_8_chunk (actual rows=1512 loops=1)
-> Seq Scan on _timescaledb_internal._hyper_2_8_chunk (actual rows=1512 loops=1)
Output: _hyper_2_8_chunk.device_id_peer, _hyper_2_8_chunk.device_id
Heap Blocks: exact=13
-> Bitmap Index Scan on _hyper_2_8_chunk_metrics_space_device_id_device_id_peer_v0_v1_2 (actual rows=1512 loops=1)
-> Bitmap Heap Scan on _timescaledb_internal._hyper_2_9_chunk (actual rows=504 loops=1)
-> Seq Scan on _timescaledb_internal._hyper_2_9_chunk (actual rows=504 loops=1)
Output: _hyper_2_9_chunk.device_id_peer, _hyper_2_9_chunk.device_id
Heap Blocks: exact=5
-> Bitmap Index Scan on _hyper_2_9_chunk_metrics_space_device_id_device_id_peer_v0_v1_2 (actual rows=504 loops=1)
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_2_10_chunk (actual rows=504 loops=1)
Output: _hyper_2_10_chunk.device_id_peer, _hyper_2_10_chunk.device_id
-> Index Scan using compress_hyper_6_20_chunk_c_space_index_2 on _timescaledb_internal.compress_hyper_6_20_chunk (actual rows=1 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_6_20_chunk (actual rows=1 loops=1)
Output: compress_hyper_6_20_chunk."time", compress_hyper_6_20_chunk.device_id, compress_hyper_6_20_chunk.device_id_peer, compress_hyper_6_20_chunk.v0, compress_hyper_6_20_chunk.v1, compress_hyper_6_20_chunk.v2, compress_hyper_6_20_chunk.v3, compress_hyper_6_20_chunk._ts_meta_count, compress_hyper_6_20_chunk._ts_meta_sequence_num, compress_hyper_6_20_chunk._ts_meta_min_3, compress_hyper_6_20_chunk._ts_meta_max_3, compress_hyper_6_20_chunk._ts_meta_min_1, compress_hyper_6_20_chunk._ts_meta_max_1, compress_hyper_6_20_chunk._ts_meta_min_2, compress_hyper_6_20_chunk._ts_meta_max_2
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_2_11_chunk (actual rows=1512 loops=1)
Output: _hyper_2_11_chunk.device_id_peer, _hyper_2_11_chunk.device_id
-> Index Scan using compress_hyper_6_21_chunk_c_space_index_2 on _timescaledb_internal.compress_hyper_6_21_chunk (actual rows=3 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_6_21_chunk (actual rows=3 loops=1)
Output: compress_hyper_6_21_chunk."time", compress_hyper_6_21_chunk.device_id, compress_hyper_6_21_chunk.device_id_peer, compress_hyper_6_21_chunk.v0, compress_hyper_6_21_chunk.v1, compress_hyper_6_21_chunk.v2, compress_hyper_6_21_chunk.v3, compress_hyper_6_21_chunk._ts_meta_count, compress_hyper_6_21_chunk._ts_meta_sequence_num, compress_hyper_6_21_chunk._ts_meta_min_3, compress_hyper_6_21_chunk._ts_meta_max_3, compress_hyper_6_21_chunk._ts_meta_min_1, compress_hyper_6_21_chunk._ts_meta_max_1, compress_hyper_6_21_chunk._ts_meta_min_2, compress_hyper_6_21_chunk._ts_meta_max_2
-> Bitmap Heap Scan on _timescaledb_internal._hyper_2_12_chunk (actual rows=504 loops=1)
-> Seq Scan on _timescaledb_internal._hyper_2_12_chunk (actual rows=504 loops=1)
Output: _hyper_2_12_chunk.device_id_peer, _hyper_2_12_chunk.device_id
Heap Blocks: exact=5
-> Bitmap Index Scan on _hyper_2_12_chunk_metrics_space_device_id_device_id_peer_v0_v_2 (actual rows=504 loops=1)
-> Hash (actual rows=2 loops=1)
Output: "*VALUES*".column1
Buckets: 1024 Batches: 1
-> Values Scan on "*VALUES*" (actual rows=2 loops=1)
Output: "*VALUES*".column1
(45 rows)
(37 rows)
SET enable_indexscan TO TRUE;
SET enable_seqscan TO TRUE;
-- test view
CREATE OR REPLACE VIEW compressed_view AS
SELECT time,

95
tsl/test/expected/transparent_decompression-14.out
View File

@ -2268,9 +2268,6 @@ WHERE device_id IN (
(18 rows)
RESET seq_page_cost;
-- force a BitmapHeapScan
SET enable_indexscan TO FALSE;
SET enable_seqscan TO FALSE;
:PREFIX_VERBOSE
SELECT device_id_peer
FROM :TEST_TABLE
@ -2281,25 +2278,21 @@ WHERE device_id IN (
Append (actual rows=1368 loops=1)
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_1_1_chunk (actual rows=360 loops=1)
Output: _hyper_1_1_chunk.device_id_peer
-> Bitmap Heap Scan on _timescaledb_internal.compress_hyper_5_15_chunk (actual rows=1 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_5_15_chunk (actual rows=1 loops=1)
Output: compress_hyper_5_15_chunk."time", compress_hyper_5_15_chunk.device_id, compress_hyper_5_15_chunk.device_id_peer, compress_hyper_5_15_chunk.v0, compress_hyper_5_15_chunk.v1, compress_hyper_5_15_chunk.v2, compress_hyper_5_15_chunk.v3, compress_hyper_5_15_chunk._ts_meta_count, compress_hyper_5_15_chunk._ts_meta_sequence_num, compress_hyper_5_15_chunk._ts_meta_min_3, compress_hyper_5_15_chunk._ts_meta_max_3, compress_hyper_5_15_chunk._ts_meta_min_1, compress_hyper_5_15_chunk._ts_meta_max_1, compress_hyper_5_15_chunk._ts_meta_min_2, compress_hyper_5_15_chunk._ts_meta_max_2
Recheck Cond: (compress_hyper_5_15_chunk.device_id = 1)
Heap Blocks: exact=1
-> Bitmap Index Scan on compress_hyper_5_15_chunk_c_index_2 (actual rows=1 loops=1)
Index Cond: (compress_hyper_5_15_chunk.device_id = 1)
Filter: (compress_hyper_5_15_chunk.device_id = 1)
Rows Removed by Filter: 4
-> Seq Scan on _timescaledb_internal._hyper_1_2_chunk (actual rows=504 loops=1)
Output: _hyper_1_2_chunk.device_id_peer
Filter: (_hyper_1_2_chunk.device_id = 1)
Rows Removed by Filter: 2016
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_1_3_chunk (actual rows=504 loops=1)
Output: _hyper_1_3_chunk.device_id_peer
-> Bitmap Heap Scan on _timescaledb_internal.compress_hyper_5_16_chunk (actual rows=1 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_5_16_chunk (actual rows=1 loops=1)
Output: compress_hyper_5_16_chunk."time", compress_hyper_5_16_chunk.device_id, compress_hyper_5_16_chunk.device_id_peer, compress_hyper_5_16_chunk.v0, compress_hyper_5_16_chunk.v1, compress_hyper_5_16_chunk.v2, compress_hyper_5_16_chunk.v3, compress_hyper_5_16_chunk._ts_meta_count, compress_hyper_5_16_chunk._ts_meta_sequence_num, compress_hyper_5_16_chunk._ts_meta_min_3, compress_hyper_5_16_chunk._ts_meta_max_3, compress_hyper_5_16_chunk._ts_meta_min_1, compress_hyper_5_16_chunk._ts_meta_max_1, compress_hyper_5_16_chunk._ts_meta_min_2, compress_hyper_5_16_chunk._ts_meta_max_2
Recheck Cond: (compress_hyper_5_16_chunk.device_id = 1)
Heap Blocks: exact=1
-> Bitmap Index Scan on compress_hyper_5_16_chunk_c_index_2 (actual rows=1 loops=1)
Index Cond: (compress_hyper_5_16_chunk.device_id = 1)
(21 rows)
Filter: (compress_hyper_5_16_chunk.device_id = 1)
Rows Removed by Filter: 4
(17 rows)
:PREFIX_VERBOSE
SELECT device_id_peer
@ -2323,12 +2316,9 @@ WHERE device_id IN (
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_1_1_chunk (actual rows=360 loops=2)
Output: _hyper_1_1_chunk.device_id_peer, _hyper_1_1_chunk.device_id
Filter: ("*VALUES*".column1 = _hyper_1_1_chunk.device_id)
-> Bitmap Heap Scan on _timescaledb_internal.compress_hyper_5_15_chunk (actual rows=1 loops=2)
-> Index Scan using compress_hyper_5_15_chunk_c_index_2 on _timescaledb_internal.compress_hyper_5_15_chunk (actual rows=1 loops=2)
Output: compress_hyper_5_15_chunk."time", compress_hyper_5_15_chunk.device_id, compress_hyper_5_15_chunk.device_id_peer, compress_hyper_5_15_chunk.v0, compress_hyper_5_15_chunk.v1, compress_hyper_5_15_chunk.v2, compress_hyper_5_15_chunk.v3, compress_hyper_5_15_chunk._ts_meta_count, compress_hyper_5_15_chunk._ts_meta_sequence_num, compress_hyper_5_15_chunk._ts_meta_min_3, compress_hyper_5_15_chunk._ts_meta_max_3, compress_hyper_5_15_chunk._ts_meta_min_1, compress_hyper_5_15_chunk._ts_meta_max_1, compress_hyper_5_15_chunk._ts_meta_min_2, compress_hyper_5_15_chunk._ts_meta_max_2
Recheck Cond: (compress_hyper_5_15_chunk.device_id = "*VALUES*".column1)
Heap Blocks: exact=2
-> Bitmap Index Scan on compress_hyper_5_15_chunk_c_index_2 (actual rows=1 loops=2)
Index Cond: (compress_hyper_5_15_chunk.device_id = "*VALUES*".column1)
Index Cond: (compress_hyper_5_15_chunk.device_id = "*VALUES*".column1)
-> Seq Scan on _timescaledb_internal._hyper_1_2_chunk (actual rows=504 loops=2)
Output: _hyper_1_2_chunk.device_id_peer, _hyper_1_2_chunk.device_id
Filter: ("*VALUES*".column1 = _hyper_1_2_chunk.device_id)
@ -2336,16 +2326,11 @@ WHERE device_id IN (
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_1_3_chunk (actual rows=504 loops=2)
Output: _hyper_1_3_chunk.device_id_peer, _hyper_1_3_chunk.device_id
Filter: ("*VALUES*".column1 = _hyper_1_3_chunk.device_id)
-> Bitmap Heap Scan on _timescaledb_internal.compress_hyper_5_16_chunk (actual rows=1 loops=2)
-> Index Scan using compress_hyper_5_16_chunk_c_index_2 on _timescaledb_internal.compress_hyper_5_16_chunk (actual rows=1 loops=2)
Output: compress_hyper_5_16_chunk."time", compress_hyper_5_16_chunk.device_id, compress_hyper_5_16_chunk.device_id_peer, compress_hyper_5_16_chunk.v0, compress_hyper_5_16_chunk.v1, compress_hyper_5_16_chunk.v2, compress_hyper_5_16_chunk.v3, compress_hyper_5_16_chunk._ts_meta_count, compress_hyper_5_16_chunk._ts_meta_sequence_num, compress_hyper_5_16_chunk._ts_meta_min_3, compress_hyper_5_16_chunk._ts_meta_max_3, compress_hyper_5_16_chunk._ts_meta_min_1, compress_hyper_5_16_chunk._ts_meta_max_1, compress_hyper_5_16_chunk._ts_meta_min_2, compress_hyper_5_16_chunk._ts_meta_max_2
Recheck Cond: (compress_hyper_5_16_chunk.device_id = "*VALUES*".column1)
Heap Blocks: exact=2
-> Bitmap Index Scan on compress_hyper_5_16_chunk_c_index_2 (actual rows=1 loops=2)
Index Cond: (compress_hyper_5_16_chunk.device_id = "*VALUES*".column1)
(33 rows)
Index Cond: (compress_hyper_5_16_chunk.device_id = "*VALUES*".column1)
(27 rows)
SET enable_indexscan TO TRUE;
SET enable_seqscan TO TRUE;
-- test view
CREATE OR REPLACE VIEW compressed_view AS
SELECT time,
@ -6654,9 +6639,6 @@ WHERE device_id IN (
(52 rows)
RESET seq_page_cost;
-- force a BitmapHeapScan
SET enable_indexscan TO FALSE;
SET enable_seqscan TO FALSE;
:PREFIX_VERBOSE
SELECT device_id_peer
FROM :TEST_TABLE
@ -6667,27 +6649,18 @@ WHERE device_id IN (
Append (actual rows=1368 loops=1)
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_2_4_chunk (actual rows=360 loops=1)
Output: _hyper_2_4_chunk.device_id_peer
-> Bitmap Heap Scan on _timescaledb_internal.compress_hyper_6_17_chunk (actual rows=1 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_6_17_chunk (actual rows=1 loops=1)
Output: compress_hyper_6_17_chunk."time", compress_hyper_6_17_chunk.device_id, compress_hyper_6_17_chunk.device_id_peer, compress_hyper_6_17_chunk.v0, compress_hyper_6_17_chunk.v1, compress_hyper_6_17_chunk.v2, compress_hyper_6_17_chunk.v3, compress_hyper_6_17_chunk._ts_meta_count, compress_hyper_6_17_chunk._ts_meta_sequence_num, compress_hyper_6_17_chunk._ts_meta_min_3, compress_hyper_6_17_chunk._ts_meta_max_3, compress_hyper_6_17_chunk._ts_meta_min_1, compress_hyper_6_17_chunk._ts_meta_max_1, compress_hyper_6_17_chunk._ts_meta_min_2, compress_hyper_6_17_chunk._ts_meta_max_2
Recheck Cond: (compress_hyper_6_17_chunk.device_id = 1)
Heap Blocks: exact=1
-> Bitmap Index Scan on compress_hyper_6_17_chunk_c_space_index_2 (actual rows=1 loops=1)
Index Cond: (compress_hyper_6_17_chunk.device_id = 1)
-> Bitmap Heap Scan on _timescaledb_internal._hyper_2_7_chunk (actual rows=504 loops=1)
Filter: (compress_hyper_6_17_chunk.device_id = 1)
-> Seq Scan on _timescaledb_internal._hyper_2_7_chunk (actual rows=504 loops=1)
Output: _hyper_2_7_chunk.device_id_peer
Recheck Cond: (_hyper_2_7_chunk.device_id = 1)
Heap Blocks: exact=5
-> Bitmap Index Scan on _hyper_2_7_chunk_metrics_space_device_id_device_id_peer_v0_v1_2 (actual rows=504 loops=1)
Index Cond: (_hyper_2_7_chunk.device_id = 1)
Filter: (_hyper_2_7_chunk.device_id = 1)
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_2_10_chunk (actual rows=504 loops=1)
Output: _hyper_2_10_chunk.device_id_peer
-> Bitmap Heap Scan on _timescaledb_internal.compress_hyper_6_20_chunk (actual rows=1 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_6_20_chunk (actual rows=1 loops=1)
Output: compress_hyper_6_20_chunk."time", compress_hyper_6_20_chunk.device_id, compress_hyper_6_20_chunk.device_id_peer, compress_hyper_6_20_chunk.v0, compress_hyper_6_20_chunk.v1, compress_hyper_6_20_chunk.v2, compress_hyper_6_20_chunk.v3, compress_hyper_6_20_chunk._ts_meta_count, compress_hyper_6_20_chunk._ts_meta_sequence_num, compress_hyper_6_20_chunk._ts_meta_min_3, compress_hyper_6_20_chunk._ts_meta_max_3, compress_hyper_6_20_chunk._ts_meta_min_1, compress_hyper_6_20_chunk._ts_meta_max_1, compress_hyper_6_20_chunk._ts_meta_min_2, compress_hyper_6_20_chunk._ts_meta_max_2
Recheck Cond: (compress_hyper_6_20_chunk.device_id = 1)
Heap Blocks: exact=1
-> Bitmap Index Scan on compress_hyper_6_20_chunk_c_space_index_2 (actual rows=1 loops=1)
Index Cond: (compress_hyper_6_20_chunk.device_id = 1)
(23 rows)
Filter: (compress_hyper_6_20_chunk.device_id = 1)
(14 rows)
:PREFIX_VERBOSE
SELECT device_id_peer
@ -6703,49 +6676,39 @@ WHERE device_id IN (
-> Append (actual rows=6840 loops=1)
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_2_4_chunk (actual rows=360 loops=1)
Output: _hyper_2_4_chunk.device_id_peer, _hyper_2_4_chunk.device_id
-> Index Scan using compress_hyper_6_17_chunk_c_space_index_2 on _timescaledb_internal.compress_hyper_6_17_chunk (actual rows=1 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_6_17_chunk (actual rows=1 loops=1)
Output: compress_hyper_6_17_chunk."time", compress_hyper_6_17_chunk.device_id, compress_hyper_6_17_chunk.device_id_peer, compress_hyper_6_17_chunk.v0, compress_hyper_6_17_chunk.v1, compress_hyper_6_17_chunk.v2, compress_hyper_6_17_chunk.v3, compress_hyper_6_17_chunk._ts_meta_count, compress_hyper_6_17_chunk._ts_meta_sequence_num, compress_hyper_6_17_chunk._ts_meta_min_3, compress_hyper_6_17_chunk._ts_meta_max_3, compress_hyper_6_17_chunk._ts_meta_min_1, compress_hyper_6_17_chunk._ts_meta_max_1, compress_hyper_6_17_chunk._ts_meta_min_2, compress_hyper_6_17_chunk._ts_meta_max_2
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_2_5_chunk (actual rows=1080 loops=1)
Output: _hyper_2_5_chunk.device_id_peer, _hyper_2_5_chunk.device_id
-> Index Scan using compress_hyper_6_18_chunk_c_space_index_2 on _timescaledb_internal.compress_hyper_6_18_chunk (actual rows=3 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_6_18_chunk (actual rows=3 loops=1)
Output: compress_hyper_6_18_chunk."time", compress_hyper_6_18_chunk.device_id, compress_hyper_6_18_chunk.device_id_peer, compress_hyper_6_18_chunk.v0, compress_hyper_6_18_chunk.v1, compress_hyper_6_18_chunk.v2, compress_hyper_6_18_chunk.v3, compress_hyper_6_18_chunk._ts_meta_count, compress_hyper_6_18_chunk._ts_meta_sequence_num, compress_hyper_6_18_chunk._ts_meta_min_3, compress_hyper_6_18_chunk._ts_meta_max_3, compress_hyper_6_18_chunk._ts_meta_min_1, compress_hyper_6_18_chunk._ts_meta_max_1, compress_hyper_6_18_chunk._ts_meta_min_2, compress_hyper_6_18_chunk._ts_meta_max_2
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_2_6_chunk (actual rows=360 loops=1)
Output: _hyper_2_6_chunk.device_id_peer, _hyper_2_6_chunk.device_id
-> Index Scan using compress_hyper_6_19_chunk_c_space_index_2 on _timescaledb_internal.compress_hyper_6_19_chunk (actual rows=1 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_6_19_chunk (actual rows=1 loops=1)
Output: compress_hyper_6_19_chunk."time", compress_hyper_6_19_chunk.device_id, compress_hyper_6_19_chunk.device_id_peer, compress_hyper_6_19_chunk.v0, compress_hyper_6_19_chunk.v1, compress_hyper_6_19_chunk.v2, compress_hyper_6_19_chunk.v3, compress_hyper_6_19_chunk._ts_meta_count, compress_hyper_6_19_chunk._ts_meta_sequence_num, compress_hyper_6_19_chunk._ts_meta_min_3, compress_hyper_6_19_chunk._ts_meta_max_3, compress_hyper_6_19_chunk._ts_meta_min_1, compress_hyper_6_19_chunk._ts_meta_max_1, compress_hyper_6_19_chunk._ts_meta_min_2, compress_hyper_6_19_chunk._ts_meta_max_2
-> Bitmap Heap Scan on _timescaledb_internal._hyper_2_7_chunk (actual rows=504 loops=1)
-> Seq Scan on _timescaledb_internal._hyper_2_7_chunk (actual rows=504 loops=1)
Output: _hyper_2_7_chunk.device_id_peer, _hyper_2_7_chunk.device_id
Heap Blocks: exact=5
-> Bitmap Index Scan on _hyper_2_7_chunk_metrics_space_device_id_device_id_peer_v0_v1_2 (actual rows=504 loops=1)
-> Bitmap Heap Scan on _timescaledb_internal._hyper_2_8_chunk (actual rows=1512 loops=1)
-> Seq Scan on _timescaledb_internal._hyper_2_8_chunk (actual rows=1512 loops=1)
Output: _hyper_2_8_chunk.device_id_peer, _hyper_2_8_chunk.device_id
Heap Blocks: exact=13
-> Bitmap Index Scan on _hyper_2_8_chunk_metrics_space_device_id_device_id_peer_v0_v1_2 (actual rows=1512 loops=1)
-> Bitmap Heap Scan on _timescaledb_internal._hyper_2_9_chunk (actual rows=504 loops=1)
-> Seq Scan on _timescaledb_internal._hyper_2_9_chunk (actual rows=504 loops=1)
Output: _hyper_2_9_chunk.device_id_peer, _hyper_2_9_chunk.device_id
Heap Blocks: exact=5
-> Bitmap Index Scan on _hyper_2_9_chunk_metrics_space_device_id_device_id_peer_v0_v1_2 (actual rows=504 loops=1)
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_2_10_chunk (actual rows=504 loops=1)
Output: _hyper_2_10_chunk.device_id_peer, _hyper_2_10_chunk.device_id
-> Index Scan using compress_hyper_6_20_chunk_c_space_index_2 on _timescaledb_internal.compress_hyper_6_20_chunk (actual rows=1 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_6_20_chunk (actual rows=1 loops=1)
Output: compress_hyper_6_20_chunk."time", compress_hyper_6_20_chunk.device_id, compress_hyper_6_20_chunk.device_id_peer, compress_hyper_6_20_chunk.v0, compress_hyper_6_20_chunk.v1, compress_hyper_6_20_chunk.v2, compress_hyper_6_20_chunk.v3, compress_hyper_6_20_chunk._ts_meta_count, compress_hyper_6_20_chunk._ts_meta_sequence_num, compress_hyper_6_20_chunk._ts_meta_min_3, compress_hyper_6_20_chunk._ts_meta_max_3, compress_hyper_6_20_chunk._ts_meta_min_1, compress_hyper_6_20_chunk._ts_meta_max_1, compress_hyper_6_20_chunk._ts_meta_min_2, compress_hyper_6_20_chunk._ts_meta_max_2
-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_2_11_chunk (actual rows=1512 loops=1)
Output: _hyper_2_11_chunk.device_id_peer, _hyper_2_11_chunk.device_id
-> Index Scan using compress_hyper_6_21_chunk_c_space_index_2 on _timescaledb_internal.compress_hyper_6_21_chunk (actual rows=3 loops=1)
-> Seq Scan on _timescaledb_internal.compress_hyper_6_21_chunk (actual rows=3 loops=1)
Output: compress_hyper_6_21_chunk."time", compress_hyper_6_21_chunk.device_id, compress_hyper_6_21_chunk.device_id_peer, compress_hyper_6_21_chunk.v0, compress_hyper_6_21_chunk.v1, compress_hyper_6_21_chunk.v2, compress_hyper_6_21_chunk.v3, compress_hyper_6_21_chunk._ts_meta_count, compress_hyper_6_21_chunk._ts_meta_sequence_num, compress_hyper_6_21_chunk._ts_meta_min_3, compress_hyper_6_21_chunk._ts_meta_max_3, compress_hyper_6_21_chunk._ts_meta_min_1, compress_hyper_6_21_chunk._ts_meta_max_1, compress_hyper_6_21_chunk._ts_meta_min_2, compress_hyper_6_21_chunk._ts_meta_max_2
-> Bitmap Heap Scan on _timescaledb_internal._hyper_2_12_chunk (actual rows=504 loops=1)
-> Seq Scan on _timescaledb_internal._hyper_2_12_chunk (actual rows=504 loops=1)
Output: _hyper_2_12_chunk.device_id_peer, _hyper_2_12_chunk.device_id
Heap Blocks: exact=5
-> Bitmap Index Scan on _hyper_2_12_chunk_metrics_space_device_id_device_id_peer_v0_v_2 (actual rows=504 loops=1)
-> Hash (actual rows=2 loops=1)
Output: "*VALUES*".column1
Buckets: 1024 Batches: 1
-> Values Scan on "*VALUES*" (actual rows=2 loops=1)
Output: "*VALUES*".column1
(45 rows)
(37 rows)
SET enable_indexscan TO TRUE;
SET enable_seqscan TO TRUE;
-- test view
CREATE OR REPLACE VIEW compressed_view AS
SELECT time,

2
tsl/test/shared/expected/decompress_placeholdervar.out
View File

@ -114,8 +114,6 @@ GROUP BY
_timescaledb_internal._hyper_
(1 row)
-- make sure we get bitmapheapscan
SET enable_indexscan TO FALSE;
SELECT
*
FROM

3
tsl/test/shared/sql/decompress_placeholdervar.sql
View File

@ -88,9 +88,6 @@ FROM
GROUP BY
tableoid;
-- make sure we get bitmapheapscan
SET enable_indexscan TO FALSE;
SELECT
*
FROM

9
tsl/test/sql/include/transparent_decompression_query.sql
View File

@ -626,11 +626,6 @@ WHERE device_id IN (
RESET seq_page_cost;
-- force a BitmapHeapScan
SET enable_indexscan TO FALSE;
SET enable_seqscan TO FALSE;
:PREFIX_VERBOSE
SELECT device_id_peer
FROM :TEST_TABLE
@ -644,10 +639,6 @@ WHERE device_id IN (
VALUES (1),
(2));
SET enable_indexscan TO TRUE;
SET enable_seqscan TO TRUE;
-- test view
CREATE OR REPLACE VIEW compressed_view AS
SELECT time,