Question

How can I tell the SQL planner that a WHERE condition in the main query should be executed in the subqueries?

score 64 · Answer 1 · 2024-03-21T18:02:34.263000

64

Views

How can I tell the SQL planner that a WHERE condition in the main query should be executed in the subqueries?

Published on 21 March 2024 at 18:02

score 32 · Answer 2 · 2024-03-05T21:55:43.753000

32

Views

Postgres Query Planner expects 1 row for a join doing a Nested Loop Join

Published on 05 March 2024 at 21:55

score 86 · Answer 3 · 2024-01-16T17:26:02.557000

86

Views

Vastly different query performance on GIN indexed table using different search words

Published on 16 January 2024 at 17:26

score 102 · Answer 4 · 2023-12-16T00:02:16.087000

102

Views

Postgres order of execution in query that computes a function and locks rows

Published on 16 December 2023 at 00:02

score 64 · Answer 5 · 2023-09-29T08:50:32.773000

64

Views

bad performance of postgres query if on-clause of inner-join is positioned after following left-joins

Published on 29 September 2023 at 08:50

score 118 · Answer 6 · 2023-09-19T19:48:54.483000

118

Views

How can I update the statistics of a table in cockroachdb

Published on 19 September 2023 at 19:48

score 63 · Answer 7 · 2023-09-12T23:20:30.087000

63

Views

Postgresql chooses a slower plan for a query involving gin + btree index, after table update

Published on 12 September 2023 at 23:20

score 95 · Answer 8 · 2023-09-08T16:58:50.673000

95

Views

PostgreSQL Index Not Utilized for JSONB Field Filtering on Non-Equality: What Am I Missing?

Published on 08 September 2023 at 16:58

score 71 · Answer 9 · 2023-08-21T14:37:51.803000

71

Views

Why does varchar(max) column in concat function cause query plan to blow up

Published on 21 August 2023 at 14:37

score 255 · Answer 10 · 2023-06-26T11:58:10.207000

255

Views

postgres LIKE % operator vs similarity - pg_trgm.similarity_threshold . different query plans

Published on 26 June 2023 at 11:58

score 86 · Answer 11 · 2023-06-20T22:37:25.220000

86

Views

Xmin queries in Postgres not using parallel sequential scans

Published on 20 June 2023 at 22:37

score 35 · Answer 12 · 2023-05-31T07:39:44.460000

35

Views

Query with identical query plan but different limits have vastly different execution times

Published on 31 May 2023 at 07:39

score 78 · Answer 13 · 2023-05-20T15:38:53.120000

78

Views

Why does PostgreSQL not use the index in this scenario?

Published on 20 May 2023 at 15:38

score 83 · Answer 14 · 2023-05-03T23:50:32.620000

83

Views

Where condition dramatically reduces performance unexpectedly

Published on 03 May 2023 at 23:50

score 64 · Answer 15 · 2023-03-12T00:39:30.597000

64

Views

MySQL. Help me understand the following execution plan

Published on 12 March 2023 at 00:39

score 283 · Answer 16 · 2023-01-17T07:57:52.503000

283

Views

Getting Index Scan instead Index Seeking if IN clause larger in Azure Sql

Published on 17 January 2023 at 07:57

score 508 · Answer 17 · 2022-12-28T19:26:41.240000

508

Views

Postgres Query uses Bitmap index scan on GIN indexed item. Does not GIN use B-Tree internally?

Published on 28 December 2022 at 19:26

score 63 · Answer 18 · 2022-12-08T14:13:37.800000

63

Views

Can Subquery Scalar Values Be Evaluated Before The Query Condition Is Evaluated In PostgreSQL?

Published on 08 December 2022 at 14:13

score 237 · Answer 19 · 2022-11-11T10:48:48.490000

237

Views

Correct planner estimate of 1:1 join without FK or left join

Published on 11 November 2022 at 10:48

score 390 · Answer 20 · 2022-10-29T14:36:48.850000

390

Views

PostgreSQL Query Planner/Optimizer: Is there a way to get candidate plans?

Published on 29 October 2022 at 14:36

List Question

How can I tell the SQL planner that a WHERE condition in the main query should be executed in the subqueries?

Postgres Query Planner expects 1 row for a join doing a Nested Loop Join

Vastly different query performance on GIN indexed table using different search words

Postgres order of execution in query that computes a function and locks rows

bad performance of postgres query if on-clause of inner-join is positioned after following left-joins

How can I update the statistics of a table in cockroachdb

Postgresql chooses a slower plan for a query involving gin + btree index, after table update

PostgreSQL Index Not Utilized for JSONB Field Filtering on Non-Equality: What Am I Missing?

Why does varchar(max) column in concat function cause query plan to blow up

postgres LIKE % operator vs similarity - pg_trgm.similarity_threshold . different query plans

Xmin queries in Postgres not using parallel sequential scans

Query with identical query plan but different limits have vastly different execution times

Why does PostgreSQL not use the index in this scenario?

Where condition dramatically reduces performance unexpectedly

MySQL. Help me understand the following execution plan

Getting Index Scan instead Index Seeking if IN clause larger in Azure Sql

Postgres Query uses Bitmap index scan on GIN indexed item. Does not GIN use B-Tree internally?

Can Subquery Scalar Values Be Evaluated Before The Query Condition Is Evaluated In PostgreSQL?

Correct planner estimate of 1:1 join without FK or left join

PostgreSQL Query Planner/Optimizer: Is there a way to get candidate plans?

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