SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 1) ExpressionList (children 1) Function JSONExtract (children 1) ExpressionList (children 3) Literal \'[]\' Function JSONExtract (children 1) ExpressionList (children 2) Literal \'0\' Literal \'UInt256\' Literal \'UInt256\'