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LibSQL: Allow expressions and column names in SELECT ... FROM

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Up to now the only ``SELECT`` statement that worked was ``SELECT *
FROM <table>``. This commit allows a column list consisting of
column names and expressions in addition to ``*``. ``WHERE``
still doesn't work though.
This commit is contained in:
Jan de Visser
2021-09-16 22:29:19 +02:00
committed by Andreas Kling
parent f33a288ca4
commit fe50598a03
Notes: sideshowbarker 2024-07-18 03:02:56 +09:00 
Author: https://github.com/JanDeVisser
Commit: https://github.com/SerenityOS/serenity/commit/fe50598a03e
Pull-request: https://github.com/SerenityOS/serenity/pull/10094
Reviewed-by: https://github.com/trflynn89 ✅
8 changed files with 90 additions and 20 deletions
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3
Userland/Libraries/LibSQL/AST/AST.h
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@@ -298,7 +298,7 @@ private:
struct ExecutionContext {
NonnullRefPtr<Database> database;
RefPtr<SQLResult> result { nullptr };
Tuple current_row {};
Tuple* current_row { nullptr };
};
class Expression : public ASTNode {
@@ -429,6 +429,7 @@ public:
const String& schema_name() const { return m_schema_name; }
const String& table_name() const { return m_table_name; }
const String& column_name() const { return m_column_name; }
virtual Value evaluate(ExecutionContext&) const override;
private:
String m_schema_name;