PR #48154 introduced a sanity check in the form of a debug assertion
that the input values for VarInt encoding are not too big. Such values
should be exceptionally rare in practice but the AST fuzzer managed to
trigger the assertion regardless. The strategy to deal with such values
until now was to bypass the check by limiting the value to the maximum
allowed value (see #48412). Because a new AST Fuzzer failure appeared
(#48497) and there may be more failures in future, this PR changes the
sanity check from an assert to an exception.
Fixes: #48497
Otherwise query like this, can trigger sanity check:
WITH x AS (SELECT [], number AS a FROM numbers(9223372036854775807)), y AS (SELECT arrayLastOrNull(x -> (x >= -inf), []), arrayLastOrNull(x -> (x >= NULL), [1]), number AS a FROM numbers(1.)) SELECT [1023], * FROM x WHERE a IN (SELECT a FROM y) ORDER BY arrayLastOrNull(x -> (x >= 1025), [1048577, 1048576]) DESC NULLS LAST, '0.0000000002' ASC NULLS LAST, a DESC NULLS FIRST
CI: https://s3.amazonaws.com/clickhouse-test-reports/0/a9bcd022d5f4a5be530595dbfae3ed177b5c1972/fuzzer_astfuzzermsan/report.html
Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
Defines.h is a very common header, so lots of modules will be recompiled
on changes.
Move macros for protocol into separate header, this should significantly
decreases number of units to compile on it's changes.
