the built-in printf(). This is an effort to avoid a reported
timeout on a (ridiculous) query generated by OSSFuzz.
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RIGHT JOIN as that leads to problems, as shown by
dbsqlfuzz a644e70d7683a7ca59c71861a153c1dccf8850b9.
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never tries to convert integer to real or real to integer. The affinity is
only used internally - it is not possible to create a table column with this
affinity. This affinity is used on subqueries and views that are built off
of a compound SELECT and where the datatype is controlled by a CAST expression.
dbsqlfuzz c9ee6f9a0a8b8fefb02cf69de2a8b67ca39525c8
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a compound with different result datatypes on two or more arms of the compound,
then the overall column type becomes BLOB (ANY).
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the materialization of a view, as the affinity can be undefined for a compound
query. This passes all TCL tests, but shows failures in the TH3 tests derived
from [forum:/forumpost/6f842bc5b2dadcb2|forum post 6f842bc5b2dadcb2], presumably
because the WHERE clause of the query uses constraints of the form
"source_crs_code='8675'" instead of "source_crs_code=8675". Perhaps further
changes on this branch should reimplement affinity on joins in cases where
the affinity is unambiguous.
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wrong level. Instead use the SF_UpdateFrom flags on the Select object.
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cruft than the coroutines-exp1 branch, but still does not work. Checked in
as a work-in-progress.
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measurement builds that make use of hwtime.h. This should not affect
productions builds.
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work. It gets an incorrect answer for the test case shown in the ticket.
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CLI command. Renumber all of the bits in the bitmask used to enable
various kinds of tracing, and add a trace bitmap decoder in sqliteInt.h.
Changes to debugging logic only. No (intentional) changes to production code.
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AggInfo object are sequential, it is not neecessary to remember each register
separately. We can simply remember the first one and do the math when
others are needed.
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changes aimed at improving aggregate query processing, and in particular
helping aggregate queries take better advantage of indexes on expression.
The end goal is to resolve ticket [99378177930f87bd], though it remains to
be seen whether or not I can get there with this approach.
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distinct from all other identifiers in the code and thus less confusing.
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in the test harness so that it returns the new optimization mask, for
verification.
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SrcItem.colUsed and Index.colNotIdxed fields. Comment changes only - no
changes to code.
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the prior [a47efb7c8520a011] enhancement from 2017 obsolete. This check-in
removes the older optimization.
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in place of the expression that is being indexed. This particular check-in
mostly works, but there are still issues.
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to "sqlite_cfg.h" to work around a bug in a dependency checker, reported
in [https://twitter.com/josecastillo/status/1577136108097314816|a tweet from Jose Castillo].
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generality, a small size reduction, and a small performance increase.
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global variables. See
[forum:/forumpost/719a11e1314d1c70|forum thread 719a11e1314d1c70].
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drh