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The two new functions allow to extract the block number and offset from a tid. There are existing ways to do so (e.g. by doing (ctid::text::point)[0]), but they are hard to remember and not pretty. tid_block() returns int8 (bigint) because BlockNumber is uint32, which exceeds the range of int4. tid_offset() returns int4 (integer) because OffsetNumber is uint16, which fits safely in int4. Bumps catversion. Author: Ayush Tiwari <ayushtiwari.slg01@gmail.com> Discussion: https://postgr.es/m/CAJTYsWUzok2+mvSYkbVUwq_SWWg-GdHqCuYumN82AU97SjwjCA@mail.gmail.com |
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