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Michael Paquier bee23ea4dd Show sizes of FETCH queries as constants in pg_stat_statements ... Prior to this patch, every FETCH call would generate a unique queryId with a different size specified. Depending on the workloads, this could lead to a significant bloat in pg_stat_statements, as repeatedly calling a specific cursor would result in a new queryId each time. For example, FETCH 1 c1; and FETCH 2 c1; would produce different queryIds. This patch improves the situation by normalizing the fetch size, so as semantically similar statements generate the same queryId. As a result, statements like the below, which differ syntactically but have the same effect, will now share a single queryId: FETCH FROM c1 FETCH NEXT c1 FETCH 1 c1 In order to do a normalization based on the keyword used in FETCH, FetchStmt is tweaked with a new FetchDirectionKeywords. This matters for "howMany", which could be set to a negative value depending on the direction, and we want to normalize the queries with enough information about the direction keywords provided, including RELATIVE, ABSOLUTE or all the ALL variants. Author: Sami Imseih <samimseih@gmail.com> Discussion: https://postgr.es/m/CAA5RZ0tA6LbHCg2qSS+KuM850BZC_+ZgHV7Ug6BXw22TNyF+MA@mail.gmail.com		11 months ago
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backend	Show sizes of FETCH queries as constants in pg_stat_statements	11 months ago
bin	amcheck: Improve confusing message	11 months ago
common	Use 'void *' for arbitrary buffers, 'uint8 *' for byte arrays	1 year ago
fe_utils	Fix incorrect format placeholders	1 year ago
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interfaces	libpq: Message style improvements	11 months ago
makefiles	pgxs.mk: remove unreachable rule for deleting regress.def.	11 months ago
pl	Improve error report for PL/pgSQL reserved word used as a field name.	11 months ago
port	Fix indentation in pg_numa code	11 months ago
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tutorial	Doc: simplify the tutorial's window-function examples.	1 year ago
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Makefile.shlib	Use exported symbols list on macOS for loadable modules as well	12 months ago
meson.build	Update copyright for 2025	1 year ago
nls-global.mk	…