pub enum ConstraintOperator {
Show 17 variants EQ, GT, LE, LT, GE, MATCH, LIKE, GLOB, REGEXP, NE, ISNOT, ISNOTNULL, ISNULL, IS, LIMIT, OFFSET, FUNCTION(u8),
}
Expand description

Possible operators for a given constraint, found and used in xBestIndex and xFilter. https://www.sqlite.org/c3ref/c_index_constraint_eq.html TODO EQ=Equals, GT=GreaterThan, etc.

Variants§

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EQ

‘Equals’, ex “=”

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GT

‘Greater Than’, ex “>”

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LE

‘Less than or equal to’, ex “<=”

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LT

‘Less than’, ex “<”

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GE

‘Greater than or equal to’, ex “>=”

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MATCH

‘Match’ function

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LIKE

‘LIKE’ function

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GLOB

‘Glob’ function

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REGEXP

‘REGEXP’ function

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NE

‘Not equal to’, ex “!=” or “<>”

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ISNOT

‘is not’ operation

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ISNOTNULL

‘is not null’ operation

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ISNULL

‘is null’ operation

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IS

‘is’ operation

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LIMIT

‘LIMIT’ constraint

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OFFSET

‘OFFSET’ operation

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FUNCTION(u8)

custom funciton overload, used in xFindFunction, see https://www.sqlite.org/vtab.html#xfindfunction

Trait Implementations§

Formats the value using the given formatter. Read more
Deserialize this value from the given Serde deserializer. Read more
This method tests for self and other values to be equal, and is used by ==. Read more
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more
Serialize this value into the given Serde serializer. Read more

Auto Trait Implementations§

Blanket Implementations§

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.