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4c04be9b05
The txid_XXX family of fmgr functions exposes 64 bit transaction IDs to users as int8. Now that we have an SQL type xid8 for FullTransactionId, define a new set of functions including pg_current_xact_id() and pg_current_snapshot() based on that. Keep the old functions around too, for now. It's a bit sneaky to use the same C functions for both, but since the binary representation is identical except for the signedness of the type, and since older functions are the ones using the wrong signedness, and since we'll presumably drop the older ones after a reasonable period of time, it seems reasonable to switch to FullTransactionId internally and share the code for both. Reviewed-by: Fujii Masao <masao.fujii@oss.nttdata.com> Reviewed-by: Takao Fujii <btfujiitkp@oss.nttdata.com> Reviewed-by: Yoshikazu Imai <imai.yoshikazu@fujitsu.com> Reviewed-by: Mark Dilger <mark.dilger@enterprisedb.com> Discussion: https://postgr.es/m/20190725000636.666m5mad25wfbrri%40alap3.anarazel.de
31 lines
1.1 KiB
Plaintext
31 lines
1.1 KiB
Plaintext
Parsed test spec with 2 sessions
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starting permutation: s0_begin s0_getxid s1_begin s1_insert s0_alter s0_commit s0_checkpoint s0_get_changes s0_get_changes s1_commit s0_vacuum s0_get_changes
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step s0_begin: BEGIN;
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step s0_getxid: SELECT pg_current_xact_id() IS NULL;
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?column?
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f
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step s1_begin: BEGIN;
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step s1_insert: INSERT INTO harvest VALUES ((1, 2, 3));
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step s0_alter: ALTER TYPE basket DROP ATTRIBUTE mangos;
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step s0_commit: COMMIT;
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step s0_checkpoint: CHECKPOINT;
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step s0_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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step s0_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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step s1_commit: COMMIT;
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step s0_vacuum: VACUUM pg_attribute;
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step s0_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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table public.harvest: INSERT: fruits[basket]:'(1,2,3)'
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COMMIT
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?column?
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stop
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