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Search results 41..46 of 46 for: constraint failed

Recent SQLite News
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 ... Without the fix, it is possible for a multi-way join that uses a Bloom filters for two or more tables in the join to enter an infinite loop if the key constraint on one of those tables contains a ... 
Write-Ahead Logging
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 ... For transactions in excess of a gigabyte, WAL mode may fail with an I/O or disk-full error. It is recommended that one of the rollback journal modes be used for transactions larger than a few dozen megabytes. Beginning ... 
Database File Format
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 ... UNIQUE and PRIMARY KEY constraints on tables cause SQLite to create internal indexes with names of the form "sqlite_autoindex_TABLE_N" where TABLE is replaced by the name of the table that contains the constraint and N is an integer beginning with ... 
 ... If an alternative language is specified in WHERE clause constraints, then that alternative is used instead of 0. There can only be a single languageid per query. In other words, the WHERE clause cannot contain a range constraint or IN ... 
The Next-Generation Query Planner
(queryplanner-ng.html)
 ... SQLite makes guesses for the cost of running a loop based on the availability of indexes and constraints found in the WHERE clause. These guesses are usually pretty good, but they can sometimes be off. Using the ANALYZE command to ... 
SQLite FTS5 Extension
(fts5.html)
Changes to CREATE VIRTUAL TABLE statements  ... All type information or constraint specifications must be removed from column definitions. FTS3/4 ignores everything following the column name in a column definition, FTS5 attempts to parse it (and will report an error if it fails to). The "matchinfo ... 

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