Which parser dialect a SQL driver uses to screen native-query text. SQL Server needs the T-SQL
grammar (brackets, TOP, @vars); every other relational dialect (PostgreSQL, MySQL, Oracle,
Snowflake) is screened with the ANSI-standard PostgreSQL grammar — write/DDL detection is
dialect-agnostic, and a vendor-specific read that the ANSI grammar can't parse fails closed
(refused) rather than running unscreened, per the EDS "refuse under uncertainty" posture.
Which parser dialect a SQL driver uses to screen native-query text. SQL Server needs the T-SQL grammar (brackets,
TOP,@vars); every other relational dialect (PostgreSQL, MySQL, Oracle, Snowflake) is screened with the ANSI-standard PostgreSQL grammar — write/DDL detection is dialect-agnostic, and a vendor-specific read that the ANSI grammar can't parse fails closed (refused) rather than running unscreened, per the EDS "refuse under uncertainty" posture.