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2bf97e452d
This commit pushes down quals or order_by columns to make use of the SegmentMetaMinMax objects. Namely =,<,<=,>,>= quals can now be pushed down. We also remove filters from decompress node for quals that have been pushed down and don't need a recheck. This commit also changes tests to add more segment by and order-by columns. Finally, we rename segment meta accessor functions to be smaller
29 lines
875 B
SQL
29 lines
875 B
SQL
-- This file and its contents are licensed under the Timescale License.
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-- Please see the included NOTICE for copyright information and
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-- LICENSE-TIMESCALE for a copy of the license.
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\set ECHO errors
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SELECT 'NULL::'||:'TYPE' as "NULLTYPE" \gset
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SELECT
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_timescaledb_internal.segment_meta_min_max_agg(i)::text as "META_TEXT",
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min(i) as "TRUE_MIN",
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max(i) as "TRUE_MAX",
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(count(*)-count(i)) > 0 as "TRUE_HAS_NULL"
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FROM :"TABLE" \gset
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SELECT
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_timescaledb_internal.segment_meta_get_min(meta, :NULLTYPE) = :'TRUE_MIN' as min_correct,
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_timescaledb_internal.segment_meta_get_max(meta, :NULLTYPE) = :'TRUE_MAX' as max_correct,
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_timescaledb_internal.segment_meta_has_null(meta) = :'TRUE_HAS_NULL' as has_null_correct
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FROM
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(
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SELECT
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:'META_TEXT'::_timescaledb_internal.segment_meta_min_max as meta
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) AS meta_gen;
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\set ECHO all
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