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Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/ref/pg_amcheck.sgml | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/doc/src/sgml/ref/pg_amcheck.sgml b/doc/src/sgml/ref/pg_amcheck.sgml index d00c48d0e79..43ee73ab93c 100644 --- a/doc/src/sgml/ref/pg_amcheck.sgml +++ b/doc/src/sgml/ref/pg_amcheck.sgml @@ -432,6 +432,18 @@ PostgreSQL documentation </variablelist> </para> + <warning> + <para> + The extra checks performed against B-tree indexes when the + <option>--parent-check</option> option or the + <option>--rootdescend</option> option is specified require + relatively strong relation-level locks. These checks are the only + checks that will block concurrent data modification from + <command>INSERT</command>, <command>UPDATE</command>, and + <command>DELETE</command> commands. + </para> + </warning> + <para> The following command-line options control the connection to the server: |