docs(pgd): document reloadable max_writers GUC#7177
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bdr.max_writers_per_subscription has been PGC_SIGHUP since PGD 6.3.0 and 5.9.2 but was not documented. The setting can now be changed with ALTER SYSTEM + pg_reload_conf() without a node restart; each writer group captures the value at initialization, so the new limit takes effect on the next writer-group start. Updates the pgd-settings reference on 5.9, 6, 6.3, and 6.4, and appends a retroactive entry to the 6.3.0 and 5.9.2 release-note YAML sources. BDR-7474
…g, and removed reference from 6.0
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bdr.max_writers_per_subscription has been PGC_SIGHUP since PGD 6.3.0 and 5.9.2 but was not documented. The setting can now be changed with ALTER SYSTEM + pg_reload_conf() without a node restart; each writer group captures the value at initialization, so the new limit takes effect on the next writer-group start.
Updates the pgd-settings reference on 5.9, 6, 6.3, and 6.4, and appends a retroactive entry to the 6.3.0 and 5.9.2 release-note YAML sources.
BDR-7474
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Draft deployment: https://deploy-preview-7177--edb-docs-staging.netlify.app/docs/