fix uninit read in DqRewriteEquiJoin

[uzhastik]

Changelog entry

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Changelog category

• Not for changelog (changelog entry is not required)

Additional information

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[github-actions]

⚪ 2024-08-01 11:29:13 UTC Pre-commit check for 0cdd7ea has started.
⚪ 2024-08-01 11:32:18 UTC Check linux-x86_64-relwithdebinfo is running...
🟡 2024-08-01 14:11:21 UTC Some tests failed, follow the links below. Going to retry failed tests...

Test history | Ya make output

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
71695	58092	0	4	13587	12

⚪ 2024-08-01 14:19:53 UTC Failed tests rerun (try 2) linux-x86_64-relwithdebinfo is running...
🟢 2024-08-01 14:28:03 UTC Tests successful.

Test history | Ya make output

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
18 (only retried tests)	10	0	0	0	8

🟢 2024-08-01 14:34:41 UTC Build successful.
🟢 2024-08-01 14:35:15 UTC ydbd size 8.1 GiB changed* by +64 Bytes, which is < 100.0 KiB vs main: OK

ydbd size dash	main: b08c9a5	merge: 0cdd7ea	diff	diff %
ydbd size	8 672 679 560 Bytes	8 672 679 624 Bytes	+64 Bytes	+0.000%
ydbd stripped size	472 081 000 Bytes	472 081 000 Bytes	0 Bytes	0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}

[github-actions]

⚪ 2024-08-01 11:29:41 UTC Pre-commit check for 0cdd7ea has started.
⚪ 2024-08-01 11:32:45 UTC Check linux-x86_64-release-asan is running...
🔴 2024-08-01 13:41:34 UTC Some tests failed, follow the links below.

Test history | Ya make output

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
10239	10182	0	10	33	14

🟢 2024-08-01 13:42:45 UTC Build successful.
🟢 2024-08-01 13:43:14 UTC ydbd size 5.4 GiB changed* by -32 Bytes, which is <= 0 Bytes vs main: OK

ydbd size dash	main: b08c9a5	merge: 0cdd7ea	diff	diff %
ydbd size	5 841 768 136 Bytes	5 841 768 104 Bytes	-32 Bytes	-0.000%
ydbd stripped size	1 463 994 448 Bytes	1 463 994 448 Bytes	0 Bytes	0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}

[github-actions]

⚪ 2024-08-01 22:52:52 UTC Pre-commit check for 0690720 has started.
⚪ 2024-08-01 22:55:43 UTC Check linux-x86_64-release-clang14 is running...
🟢 2024-08-01 23:06:21 UTC Build successful.

[github-actions]

⚪ 2024-08-01 22:53:12 UTC Pre-commit check for 0690720 has started.
⚪ 2024-08-01 22:56:06 UTC Check linux-x86_64-release-asan is running...
🔴 2024-08-02 01:02:55 UTC Some tests failed, follow the links below.

Test history | Ya make output

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
10244	10188	0	7	33	16

🟢 2024-08-02 01:04:04 UTC Build successful.
🟢 2024-08-02 01:04:36 UTC ydbd size 5.4 GiB changed* by -80 Bytes, which is <= 0 Bytes vs main: OK

ydbd size dash	main: c0c6ab2	merge: 0690720	diff	diff %
ydbd size	5 842 854 176 Bytes	5 842 854 096 Bytes	-80 Bytes	-0.000%
ydbd stripped size	1 464 161 104 Bytes	1 464 161 040 Bytes	-64 Bytes	-0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}

[github-actions]

⚪ 2024-08-01 23:07:54 UTC Pre-commit check for 0690720 has started.
⚪ 2024-08-01 23:10:42 UTC Check linux-x86_64-relwithdebinfo is running...
🟡 2024-08-02 01:16:30 UTC Some tests failed, follow the links below. Going to retry failed tests...

Test history | Ya make output

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
71695	58086	0	4	13587	18

⚪ 2024-08-02 01:27:47 UTC Failed tests rerun (try 2) linux-x86_64-relwithdebinfo is running...
🟢 2024-08-02 01:35:39 UTC Tests successful.

Test history | Ya make output

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
24 (only retried tests)	12	0	0	0	12

🟢 2024-08-02 01:42:15 UTC Build successful.
🟢 2024-08-02 01:42:47 UTC ydbd size 8.1 GiB changed* by +64 Bytes, which is < 100.0 KiB vs main: OK

ydbd size dash	main: c0c6ab2	merge: 0690720	diff	diff %
ydbd size	8 674 766 744 Bytes	8 674 766 808 Bytes	+64 Bytes	+0.000%
ydbd stripped size	472 123 112 Bytes	472 123 112 Bytes	0 Bytes	0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}