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Improve array-element-test estimation when no array elements qualify as common

ID	5805
Title	Improve array-element-test estimation when no array elements qualify as common
CI (CFBot)	Summary Copy git checkout commands
Stats (from CFBot)	Patch count: 1, First patch: +18−2, All patches: +18−2
Topic	Performance
Tags
Created	2025-06-07 01:38:28
Last modified	2025-06-07 01:39:47 (4 weeks ago)
Latest email	2025-06-07 01:29:54 (4 weeks ago)
Status	PG19-1 (2025-07-01 - 2025-07-31): Needs review
Target version
Authors	Tom Lane (tgl)
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Emails	Attach thread Poor row estimates from planner, stat `most_common_elems` sometimes missing for a text[] column × First at 2025-06-05 15:42:00 by Mark Frost <FROSTMAR at uk.ibm.com> Latest at 2025-06-07 01:29:54 by Tom Lane <tgl at sss.pgh.pa.us> Latest attachment (wip-always-record-minimum-MCE-frequency.patch) at 2025-06-07 01:29:54 from Tom Lane <tgl at sss.pgh.pa.us>     Attachment (wip-always-record-minimum-MCE-frequency.patch) at 2025-06-07 01:29:54 from Tom Lane <tgl at sss.pgh.pa.us> (Patch: Yes)
History	When Who What 2025-06-07 01:39:47 Tom Lane (tgl) Changed name to Improve array-element-test estimation when no array elements qualify as common 2025-06-07 01:38:28 Tom Lane (tgl) Attached mail thread PH3PPF1C905D6E6F24A5C1A1A1D8345B593E16FA@PH3PPF1C905D6E6.namprd15.prod.outlook.com 2025-06-07 01:38:28 Tom Lane (tgl) Created patch record