Zev Benjamin 1c761f7ae3 [schema] [manual] Rebuild search_tsvector and change its update trigger ...

In addition to changing the trigger that updates
zephyr_message.search_tsvector to use our new text search
configuration, it also now builds the tsvector on rendered_content
instead of content and fires on update of only the subject or
rendered_content columns.

This migration is expected to take a long time.  The
checkpoint_segments parameter in postgresql.conf should be
temporarily raised (probably to 32) while it is running.

(imported from commit 4535438bb33ce1db2a74ecbe91efc52afdb568f1)

2013-04-29 13:58:20 -04:00

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