FTS3 is already enabled by default, and the other FTS versions
seems just to have been missed. Given that, the other FTS plugins
look like a low impact so worth a try. The current bundled libsqlite
versions in 7.x are proven stable already and support FTS5.
In pdo_sqlite, getColumnMeta should return the table name.
With bundled SQLite library, -DSQLITE_ENABLE_COLUMN_METADATA=1 (other_flags)
enable the feature in SQLite (function sqlite3_column_table_name).
With system SQLite library, this fix detects if sqlite3_column_table_name is
available and add SQLITE_ENABLE_COLUMN_METADATA macro to get the same behavior.
Test already exists: ext/pdo_sqlite/tests/bug_42589.phpt
