SelectStatement
SelectItem
Used by
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Reference
Used by
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FromSource
Used by
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TableSource
Used by
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TableValuedCall
Used by
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TableValuedSource
Used by
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SubquerySource
Used by
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JoinClause
Used by
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WhereClause
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Condition
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PredicateTail
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InSource
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Expression
Operators
Binary operators supported in scalar expressions, listed from highest to lowest precedence.PowerSync evaluates all binary operators with equal precedence (left to right). Use parentheses to control evaluation order.
| Precedence | Operators | Description |
|---|---|---|
| 1 | || | String concatenation |
| 2 | * / % | Multiplication, division, modulo |
| 3 | + - | Addition, subtraction |
| 4 | & | << >> | Bitwise AND, OR, left/right shift |
| 5 | < > <= >= | Less than, greater than, etc. |
| 6 | = != | Equal, not equal |
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PropertyAccess
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PrimaryExpression
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CaseExpression
Used by
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SearchedCase
Used by
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WhenClause
Used by
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CaseCondition
Used by
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SimpleCase
Used by
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WhenValueClause
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CastExpression
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FunctionCall
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Subquery
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CteDefinition
Lexical Rules
| Token | Examples | Rule |
|---|---|---|
| Identifier | user_id, MY_TABLE, "Column Name", "with ""quotes"" inside" | [A-Z_] ([A-Z_0-9])* |
| StringLiteral | 'hello', 'it''s', '' | "'" ([\x20-\x26] | [\x28-\x7E])* "'" |
| IntegerLiteral | 0, 42, 12345 | ([0-9])+ |
| NumericLiteral | 3.14, 42, 0.5 | ([0-9])+ ("." ([0-9])+)? |
Identifier
Bare identifiers are normalized to lower case and may contain letters, digits, and underscores. Double-quoted identifiers (“name”) allow any printable character and support escaped quotes ("").Used by
Used by
StringLiteral
Single-quoted string literal. Embedded single quotes are escaped by doubling them (”).Used by
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IntegerLiteral
One or more decimal digits (0-9).Used by
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NumericLiteral
Decimal number: one or more digits with an optional fractional part (.digits).Used by
Used by