Log Message:
-----------
Fix ts_debug function to prevent unneeded calls of ts_lexize().
It will be mush better to reimplement ts_debug in C (instead of SQL as now),
but it's planned for the future.
Modified Files:
--------------
pgsql/src/backend/catalog:
system_views.sql (r1.43 -> r1.44)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/catalog/system_views.sql?r1=1.43&r2=1.44)
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TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
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