Remove version specific checks for GUC

test/expected/append-14.out

@@ -10,13 +10,8 @@ SELECT format('include/%s_load.sql', :'TEST_BASE_NAME') as "TEST_LOAD_NAME",
 SELECT format('\! diff -u --label "Unoptimized results" --label "Optimized results" %s %s', :'TEST_RESULTS_UNOPTIMIZED', :'TEST_RESULTS_OPTIMIZED') as "DIFF_CMD"
 \gset
 SET timescaledb.enable_now_constify TO false;
--- disable memoize node to make EXPLAIN output comparable between PG14 and previous versions
-SELECT CASE WHEN current_setting('server_version_num')::int/10000 >= 14 THEN set_config('enable_memoize','off',false) ELSE 'off' END AS enable_memoize;
- enable_memoize 
-----------------
- off
-(1 row)
-
+-- disable memoize node to avoid flaky results
+SET enable_memoize TO 'off';
 \set PREFIX 'EXPLAIN (analyze, costs off, timing off, summary off)'
 \ir :TEST_LOAD_NAME
 -- This file and its contents are licensed under the Apache License 2.0.

test/expected/append-15.out

@@ -10,13 +10,8 @@ SELECT format('include/%s_load.sql', :'TEST_BASE_NAME') as "TEST_LOAD_NAME",
 SELECT format('\! diff -u --label "Unoptimized results" --label "Optimized results" %s %s', :'TEST_RESULTS_UNOPTIMIZED', :'TEST_RESULTS_OPTIMIZED') as "DIFF_CMD"
 \gset
 SET timescaledb.enable_now_constify TO false;
--- disable memoize node to make EXPLAIN output comparable between PG14 and previous versions
-SELECT CASE WHEN current_setting('server_version_num')::int/10000 >= 14 THEN set_config('enable_memoize','off',false) ELSE 'off' END AS enable_memoize;
- enable_memoize 
-----------------
- off
-(1 row)
-
+-- disable memoize node to avoid flaky results
+SET enable_memoize TO 'off';
 \set PREFIX 'EXPLAIN (analyze, costs off, timing off, summary off)'
 \ir :TEST_LOAD_NAME
 -- This file and its contents are licensed under the Apache License 2.0.

test/expected/append-16.out

@@ -10,13 +10,8 @@ SELECT format('include/%s_load.sql', :'TEST_BASE_NAME') as "TEST_LOAD_NAME",
 SELECT format('\! diff -u --label "Unoptimized results" --label "Optimized results" %s %s', :'TEST_RESULTS_UNOPTIMIZED', :'TEST_RESULTS_OPTIMIZED') as "DIFF_CMD"
 \gset
 SET timescaledb.enable_now_constify TO false;
--- disable memoize node to make EXPLAIN output comparable between PG14 and previous versions
-SELECT CASE WHEN current_setting('server_version_num')::int/10000 >= 14 THEN set_config('enable_memoize','off',false) ELSE 'off' END AS enable_memoize;
- enable_memoize 
-----------------
- off
-(1 row)
-
+-- disable memoize node to avoid flaky results
+SET enable_memoize TO 'off';
 \set PREFIX 'EXPLAIN (analyze, costs off, timing off, summary off)'
 \ir :TEST_LOAD_NAME
 -- This file and its contents are licensed under the Apache License 2.0.

test/expected/append-17.out

@@ -10,13 +10,8 @@ SELECT format('include/%s_load.sql', :'TEST_BASE_NAME') as "TEST_LOAD_NAME",
 SELECT format('\! diff -u --label "Unoptimized results" --label "Optimized results" %s %s', :'TEST_RESULTS_UNOPTIMIZED', :'TEST_RESULTS_OPTIMIZED') as "DIFF_CMD"
 \gset
 SET timescaledb.enable_now_constify TO false;
--- disable memoize node to make EXPLAIN output comparable between PG14 and previous versions
-SELECT CASE WHEN current_setting('server_version_num')::int/10000 >= 14 THEN set_config('enable_memoize','off',false) ELSE 'off' END AS enable_memoize;
- enable_memoize 
-----------------
- off
-(1 row)
-
+-- disable memoize node to avoid flaky results
+SET enable_memoize TO 'off';
 \set PREFIX 'EXPLAIN (analyze, costs off, timing off, summary off)'
 \ir :TEST_LOAD_NAME
 -- This file and its contents are licensed under the Apache License 2.0.

test/sql/append.sql.in

@@ -13,8 +13,8 @@ SELECT format('\! diff -u --label "Unoptimized results" --label "Optimized resul
 
 SET timescaledb.enable_now_constify TO false;
 
--- disable memoize node to make EXPLAIN output comparable between PG14 and previous versions
-SELECT CASE WHEN current_setting('server_version_num')::int/10000 >= 14 THEN set_config('enable_memoize','off',false) ELSE 'off' END AS enable_memoize;
+-- disable memoize node to avoid flaky results
+SET enable_memoize TO 'off';
 
 \set PREFIX 'EXPLAIN (analyze, costs off, timing off, summary off)'
 

tsl/test/expected/transparent_decompression-14.out

@@ -10,13 +10,8 @@ SELECT format('\! diff %s %s', :'TEST_RESULTS_UNCOMPRESSED', :'TEST_RESULTS_COMP
 SET work_mem TO '50MB';
 SET enable_incremental_sort TO off;
 SET timezone TO PST8PDT;
--- disable memoize node to make EXPLAIN output comparable between PG14 and previous versions
-SELECT CASE WHEN current_setting('server_version_num')::int/10000 >= 14 THEN set_config('enable_memoize','off',false) ELSE 'off' END AS enable_memoize;
- enable_memoize 
-----------------
- off
-(1 row)
-
+-- disable memoize node to avoid flaky results
+SET enable_memoize TO 'off';
 CREATE TABLE metrics (
     filler_1 int,
     filler_2 int,

tsl/test/expected/transparent_decompression-15.out

@@ -10,13 +10,8 @@ SELECT format('\! diff %s %s', :'TEST_RESULTS_UNCOMPRESSED', :'TEST_RESULTS_COMP
 SET work_mem TO '50MB';
 SET enable_incremental_sort TO off;
 SET timezone TO PST8PDT;
--- disable memoize node to make EXPLAIN output comparable between PG14 and previous versions
-SELECT CASE WHEN current_setting('server_version_num')::int/10000 >= 14 THEN set_config('enable_memoize','off',false) ELSE 'off' END AS enable_memoize;
- enable_memoize 
-----------------
- off
-(1 row)
-
+-- disable memoize node to avoid flaky results
+SET enable_memoize TO 'off';
 CREATE TABLE metrics (
     filler_1 int,
     filler_2 int,

tsl/test/expected/transparent_decompression-16.out

@@ -10,13 +10,8 @@ SELECT format('\! diff %s %s', :'TEST_RESULTS_UNCOMPRESSED', :'TEST_RESULTS_COMP
 SET work_mem TO '50MB';
 SET enable_incremental_sort TO off;
 SET timezone TO PST8PDT;
--- disable memoize node to make EXPLAIN output comparable between PG14 and previous versions
-SELECT CASE WHEN current_setting('server_version_num')::int/10000 >= 14 THEN set_config('enable_memoize','off',false) ELSE 'off' END AS enable_memoize;
- enable_memoize 
-----------------
- off
-(1 row)
-
+-- disable memoize node to avoid flaky results
+SET enable_memoize TO 'off';
 CREATE TABLE metrics (
     filler_1 int,
     filler_2 int,

tsl/test/expected/transparent_decompression-17.out

@@ -10,13 +10,8 @@ SELECT format('\! diff %s %s', :'TEST_RESULTS_UNCOMPRESSED', :'TEST_RESULTS_COMP
 SET work_mem TO '50MB';
 SET enable_incremental_sort TO off;
 SET timezone TO PST8PDT;
--- disable memoize node to make EXPLAIN output comparable between PG14 and previous versions
-SELECT CASE WHEN current_setting('server_version_num')::int/10000 >= 14 THEN set_config('enable_memoize','off',false) ELSE 'off' END AS enable_memoize;
- enable_memoize 
-----------------
- off
-(1 row)
-
+-- disable memoize node to avoid flaky results
+SET enable_memoize TO 'off';
 CREATE TABLE metrics (
     filler_1 int,
     filler_2 int,

tsl/test/expected/transparent_decompression_ordered_index-14.out

@@ -6,13 +6,8 @@ SELECT format('include/%s_query.sql', :'TEST_BASE_NAME') AS "TEST_QUERY_NAME",
     format('%s/results/%s_results_uncompressed.out', :'TEST_OUTPUT_DIR', :'TEST_BASE_NAME') AS "TEST_RESULTS_UNCOMPRESSED",
     format('%s/results/%s_results_compressed.out', :'TEST_OUTPUT_DIR', :'TEST_BASE_NAME') AS "TEST_RESULTS_COMPRESSED" \gset
 SELECT format('\! diff %s %s', :'TEST_RESULTS_UNCOMPRESSED', :'TEST_RESULTS_COMPRESSED') AS "DIFF_CMD" \gset
--- disable memoize node to make EXPLAIN output comparable between PG14 and previous versions
-SELECT CASE WHEN current_setting('server_version_num')::int/10000 >= 14 THEN set_config('enable_memoize','off',false) ELSE 'off' END AS enable_memoize;
- enable_memoize 
-----------------
- off
-(1 row)
-
+-- disable memoize node to avoid flaky results
+SET enable_memoize TO 'off';
 -- Testing Index Scan backwards ----
 -- We want more than 1 segment in atleast 1 of the chunks
 CREATE TABLE metrics_ordered_idx (

tsl/test/expected/transparent_decompression_ordered_index-15.out

@@ -6,13 +6,8 @@ SELECT format('include/%s_query.sql', :'TEST_BASE_NAME') AS "TEST_QUERY_NAME",
     format('%s/results/%s_results_uncompressed.out', :'TEST_OUTPUT_DIR', :'TEST_BASE_NAME') AS "TEST_RESULTS_UNCOMPRESSED",
     format('%s/results/%s_results_compressed.out', :'TEST_OUTPUT_DIR', :'TEST_BASE_NAME') AS "TEST_RESULTS_COMPRESSED" \gset
 SELECT format('\! diff %s %s', :'TEST_RESULTS_UNCOMPRESSED', :'TEST_RESULTS_COMPRESSED') AS "DIFF_CMD" \gset
--- disable memoize node to make EXPLAIN output comparable between PG14 and previous versions
-SELECT CASE WHEN current_setting('server_version_num')::int/10000 >= 14 THEN set_config('enable_memoize','off',false) ELSE 'off' END AS enable_memoize;
- enable_memoize 
-----------------
- off
-(1 row)
-
+-- disable memoize node to avoid flaky results
+SET enable_memoize TO 'off';
 -- Testing Index Scan backwards ----
 -- We want more than 1 segment in atleast 1 of the chunks
 CREATE TABLE metrics_ordered_idx (

tsl/test/expected/transparent_decompression_ordered_index-16.out

@@ -6,13 +6,8 @@ SELECT format('include/%s_query.sql', :'TEST_BASE_NAME') AS "TEST_QUERY_NAME",
     format('%s/results/%s_results_uncompressed.out', :'TEST_OUTPUT_DIR', :'TEST_BASE_NAME') AS "TEST_RESULTS_UNCOMPRESSED",
     format('%s/results/%s_results_compressed.out', :'TEST_OUTPUT_DIR', :'TEST_BASE_NAME') AS "TEST_RESULTS_COMPRESSED" \gset
 SELECT format('\! diff %s %s', :'TEST_RESULTS_UNCOMPRESSED', :'TEST_RESULTS_COMPRESSED') AS "DIFF_CMD" \gset
--- disable memoize node to make EXPLAIN output comparable between PG14 and previous versions
-SELECT CASE WHEN current_setting('server_version_num')::int/10000 >= 14 THEN set_config('enable_memoize','off',false) ELSE 'off' END AS enable_memoize;
- enable_memoize 
-----------------
- off
-(1 row)
-
+-- disable memoize node to avoid flaky results
+SET enable_memoize TO 'off';
 -- Testing Index Scan backwards ----
 -- We want more than 1 segment in atleast 1 of the chunks
 CREATE TABLE metrics_ordered_idx (

tsl/test/expected/transparent_decompression_ordered_index-17.out

@@ -6,13 +6,8 @@ SELECT format('include/%s_query.sql', :'TEST_BASE_NAME') AS "TEST_QUERY_NAME",
     format('%s/results/%s_results_uncompressed.out', :'TEST_OUTPUT_DIR', :'TEST_BASE_NAME') AS "TEST_RESULTS_UNCOMPRESSED",
     format('%s/results/%s_results_compressed.out', :'TEST_OUTPUT_DIR', :'TEST_BASE_NAME') AS "TEST_RESULTS_COMPRESSED" \gset
 SELECT format('\! diff %s %s', :'TEST_RESULTS_UNCOMPRESSED', :'TEST_RESULTS_COMPRESSED') AS "DIFF_CMD" \gset
--- disable memoize node to make EXPLAIN output comparable between PG14 and previous versions
-SELECT CASE WHEN current_setting('server_version_num')::int/10000 >= 14 THEN set_config('enable_memoize','off',false) ELSE 'off' END AS enable_memoize;
- enable_memoize 
-----------------
- off
-(1 row)
-
+-- disable memoize node to avoid flaky results
+SET enable_memoize TO 'off';
 -- Testing Index Scan backwards ----
 -- We want more than 1 segment in atleast 1 of the chunks
 CREATE TABLE metrics_ordered_idx (

tsl/test/shared/expected/constraint_exclusion_prepared.out

@@ -9,30 +9,22 @@ SELECT
 \gset
 SELECT format('\! diff -u --label "Uncompressed results" --label "Compressed results" %s %s', :'TEST_RESULTS_UNCOMPRESSED', :'TEST_RESULTS_COMPRESSED') as "DIFF_CMD"
 \gset
--- disable memoize node to make EXPLAIN output comparable between PG14 and previous versions
-SELECT CASE WHEN current_setting('server_version_num')::int/10000 >= 14 THEN set_config('enable_memoize','off',false) ELSE 'off' END AS enable_memoize;
- enable_memoize 
- off
-(1 row)
-
 -- get EXPLAIN output for all variations
 \set PREFIX 'EXPLAIN (analyze, costs off, timing off, summary off)'
 \set PREFIX_VERBOSE 'EXPLAIN (analyze, costs off, timing off, summary off, verbose)'
-set work_mem to '64MB';
--- disable incremental sort here to make plans comparable to PG < 13
-SELECT CASE WHEN current_setting('server_version_num')::int/10000 >= 13 THEN set_config('enable_incremental_sort','off',false) ELSE 'off' END;
- case 
- off
-(1 row)
-
+SET work_mem TO '64MB';
 -- In the following test cases, we test that certain indexes are used. By using the
 -- timescaledb.enable_decompression_sorted_merge optimization, we are pushing a sort node
 -- below the DecompressChunk node, which operates on the batches. This could lead to flaky
 -- tests because the input data is small and PostgreSQL switches from IndexScans to
 -- SequentialScans. Disable the optimization for the following tests to ensure we have
 -- stable query plans in all CI environments.
-SET timescaledb.enable_decompression_sorted_merge = 0;
-set max_parallel_workers_per_gather to 0;
+SET timescaledb.enable_decompression_sorted_merge TO 'off';
+SET max_parallel_workers_per_gather TO '0';
+-- disable incremental sort to avoid flaky results
+SET enable_incremental_sort TO 'off';
+-- disable memoize node to avoid flaky results
+SET enable_memoize TO 'off';
 \set TEST_TABLE 'metrics'
 \ir :TEST_QUERY_NAME
 -- This file and its contents are licensed under the Timescale License.

tsl/test/shared/sql/constraint_exclusion_prepared.sql

@@ -11,17 +11,11 @@ SELECT
 SELECT format('\! diff -u --label "Uncompressed results" --label "Compressed results" %s %s', :'TEST_RESULTS_UNCOMPRESSED', :'TEST_RESULTS_COMPRESSED') as "DIFF_CMD"
 \gset
 
--- disable memoize node to make EXPLAIN output comparable between PG14 and previous versions
-SELECT CASE WHEN current_setting('server_version_num')::int/10000 >= 14 THEN set_config('enable_memoize','off',false) ELSE 'off' END AS enable_memoize;
-
 -- get EXPLAIN output for all variations
 \set PREFIX 'EXPLAIN (analyze, costs off, timing off, summary off)'
 \set PREFIX_VERBOSE 'EXPLAIN (analyze, costs off, timing off, summary off, verbose)'
 
-set work_mem to '64MB';
--- disable incremental sort here to make plans comparable to PG < 13
-SELECT CASE WHEN current_setting('server_version_num')::int/10000 >= 13 THEN set_config('enable_incremental_sort','off',false) ELSE 'off' END;
-
+SET work_mem TO '64MB';
 
 -- In the following test cases, we test that certain indexes are used. By using the
 -- timescaledb.enable_decompression_sorted_merge optimization, we are pushing a sort node
@@ -29,9 +23,14 @@ SELECT CASE WHEN current_setting('server_version_num')::int/10000 >= 13 THEN set
 -- tests because the input data is small and PostgreSQL switches from IndexScans to
 -- SequentialScans. Disable the optimization for the following tests to ensure we have
 -- stable query plans in all CI environments.
-SET timescaledb.enable_decompression_sorted_merge = 0;
+SET timescaledb.enable_decompression_sorted_merge TO 'off';
+SET max_parallel_workers_per_gather TO '0';
+
+-- disable incremental sort to avoid flaky results
+SET enable_incremental_sort TO 'off';
+-- disable memoize node to avoid flaky results
+SET enable_memoize TO 'off';
 
-set max_parallel_workers_per_gather to 0;
 \set TEST_TABLE 'metrics'
 \ir :TEST_QUERY_NAME
 \set TEST_TABLE 'metrics_space'

tsl/test/sql/transparent_decompression.sql.in

@@ -14,8 +14,8 @@ SET work_mem TO '50MB';
 SET enable_incremental_sort TO off;
 SET timezone TO PST8PDT;
 
--- disable memoize node to make EXPLAIN output comparable between PG14 and previous versions
-SELECT CASE WHEN current_setting('server_version_num')::int/10000 >= 14 THEN set_config('enable_memoize','off',false) ELSE 'off' END AS enable_memoize;
+-- disable memoize node to avoid flaky results
+SET enable_memoize TO 'off';
 
 CREATE TABLE metrics (
     filler_1 int,

tsl/test/sql/transparent_decompression_ordered_index.sql.in

@@ -9,8 +9,8 @@ SELECT format('include/%s_query.sql', :'TEST_BASE_NAME') AS "TEST_QUERY_NAME",
 
 SELECT format('\! diff %s %s', :'TEST_RESULTS_UNCOMPRESSED', :'TEST_RESULTS_COMPRESSED') AS "DIFF_CMD" \gset
 
--- disable memoize node to make EXPLAIN output comparable between PG14 and previous versions
-SELECT CASE WHEN current_setting('server_version_num')::int/10000 >= 14 THEN set_config('enable_memoize','off',false) ELSE 'off' END AS enable_memoize;
+-- disable memoize node to avoid flaky results
+SET enable_memoize TO 'off';
 
 -- Testing Index Scan backwards ----
 -- We want more than 1 segment in atleast 1 of the chunks