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Peter Geoghegan df4f3ab517 Add show_data option to pg_get_wal_block_info. ... Allow users to opt out of returning FPI data and block data from pg_get_wal_block_info as an optimization. Testing has shown that this can make function execution over twice as fast in some cases. When pg_get_wal_block_info is called with "show_data := false", it always returns NULL values for its block_data and block_fpi_data bytea output parameters. Nothing else changes. In particular, the function will still return the usual per-block summary of block data/FPI space overhead. Use of "show_data := false" is therefore feasible with all queries that don't specifically require these raw binary strings. Follow-up to recent work in commit 122376f0. There still hasn't been a stable release with the pg_get_wal_block_info function, so no bump in the pg_walinspect extension version. Per suggestion from Melanie Plageman. Author: Peter Geoghegan <pg@bowt.ie> Discussion: https://postgr.es/m/CAAKRu_bJvbcYBRj2cN6G2xV7B7-Ja+pjTO1nEnEhRR8OXYiABA@mail.gmail.com Discussion: https://postgr.es/m/CAH2-Wzm9shOkEDM10_+qOZkRSQhKVxwBFiehH6EHWQQRd_rDPw@mail.gmail.com		2 years ago
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oldextversions.out	Add show_data option to pg_get_wal_block_info.	2 years ago
pg_walinspect.out	Add show_data option to pg_get_wal_block_info.	2 years ago