8000 docs: Clarify flag dependencies for background workers. · postgres/postgres@5cbe935 · GitHub
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robertmhaasrobertmhaas
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docs: Clarify flag dependencies for background workers.
BGWORKER_BACKEND_DATABASE_CONNECTION can only be used if BGWORKER_SHMEM_ACCESS is also used. Michael Paquier, with some tweaks by me.
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‎doc/src/sgml/bgworker.sgml

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@@ -64,7 +64,10 @@ typedef struct BackgroundWorker
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<literal>BGWORKER_SHMEM_ACCESS</literal> (requesting shared memory access)
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and <literal>BGWORKER_BACKEND_DATABASE_CONNECTION</literal> (requesting the
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ability to establish a database connection, through which it can later run
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transactions and queries).
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transactions and queries). A background worker using
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<literal>BGWORKER_BACKEND_DATABASE_CONNECTION</literal> to connect to
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a database must also attach shared memory using
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<literal>BGWORKER_SHMEM_ACCESS</literal>, or worker start-up will fail.
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</para>
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<para>

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