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Simon Riggs c203d6cf81 Allow HOT updates for some expression indexes ... If the value of an index expression is unchanged after UPDATE, allow HOT updates where previously we disallowed them, giving a significant performance boost in those cases. Particularly useful for indexes such as JSON->>field where the JSON value changes but the indexed value does not. Submitted as "surjective indexes" patch, now enabled by use of new "recheck_on_update" parameter. Author: Konstantin Knizhnik Reviewer: Simon Riggs, with much wordsmithing and some cleanup		8 years ago
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src	Allow HOT updates for some expression indexes	8 years ago
KNOWN_BUGS	Remove extra newlines at end and beginning of files, add missing newlines	15 years ago
MISSING_FEATURES	Remove extra newlines at end and beginning of files, add missing newlines	15 years ago
Makefile	Remove maintainer-check target, fold into normal build	12 years ago
TODO	Change documentation references to PG website to use https: not http:	8 years ago
bug.template	Stamp HEAD as 11devel.	8 years ago