Internal implementation of the user-facing Catalog
.
A helper class that enables substitution using syntax like
${var}
, ${system:var}
and ${env:var}
.
A helper class that enables substitution using syntax like
${var}
, ${system:var}
and ${env:var}
.
Variable substitution is controlled by SQLConf.variableSubstituteEnabled
.
Static SQL configuration is a cross-session, immutable Spark configuration.
Static SQL configuration is a cross-session, immutable Spark configuration. External users can
see the static sql configs via SparkSession.conf
, but can NOT set/unset them.
All classes in this package are considered an internal API to Spark and are subject to change between minor releases.