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repmgrd: check binary and extension major versions match

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repmgr requires that the same "major version" (e.g. 4.3) is present
on all nodes, otherwise - particularly in the case of repmgrd - it's
highly likely things won't work as expected.

Implements part of GitHub #515.
This commit is contained in:
Ian Barwick
2018-12-18 10:34:01 +09:00
parent 40410e43ab
commit 40408a1734
5 changed files with 46 additions and 5 deletions
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6
dbutils.c
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@@ -1904,9 +1904,9 @@ get_repmgr_extension_status(PGconn *conn, t_extension_versions *extversions)
appendPQExpBufferStr(&query,
" SELECT ae.name, e.extname, "
" ae.default_version, "
" (ae.default_version::numeric * 10)::INT AS available, "
" (((ae.default_version::NUMERIC::INT) * 10000) + (ae.default_version::NUMERIC - ae.default_version::NUMERIC::INT) * 1000)::INT AS available, "
" ae.installed_version, "
" (ae.installed_version::numeric * 10)::INT AS installed "
" (((ae.installed_version::NUMERIC::INT) * 10000) + (ae.installed_version::NUMERIC - ae.installed_version::NUMERIC::INT) * 1000)::INT AS installed "
" FROM pg_catalog.pg_available_extensions ae "
"LEFT JOIN pg_catalog.pg_extension e "
" ON e.extname=ae.name "
@@ -1936,7 +1936,9 @@ get_repmgr_extension_status(PGconn *conn, t_extension_versions *extversions)
if (extversions != NULL)
{
strncpy(extversions->default_version, PQgetvalue(res, 0, 2), 7);
extversions->default_version_num = available_version;
strncpy(extversions->installed_version, PQgetvalue(res, 0, 4), 7);
extversions->installed_version_num = installed_version;
}
if (available_version > installed_version)