Filter Query Language

Expression Structure

Query structure consists of field, operator, and value:

For an expression like name==text, the structure is explained as follows:

Name	Description
`name`	Field ID or field name. Names with spaces can be wrapped in braces, e.g., `{single text}`
`==`	Comparison operator. Different field types support different operators, detailed below
`text`	Values with spaces are usually wrapped in double quotes, e.g., `name=="text 1"`

Note: field can only use characters other than system reserved characters, no spaces allowed. If spaces are needed, wrap with braces, e.g., {single text}

System reserved characters:

" ' ( ) ; , = ! ~ < > \n \t \r

Operators

Logical Operators

Logical Operator	Description
`;` or `and`	AND
`,` or `or`	OR

Compound queries combine multiple expressions to form complex query conditions.

Note: Only one type of logical operator can be used in a single query, they cannot be mixed. and and or cannot coexist, for example: ✅ Valid: single_text=="text 1";single_text=="text 2";single_text=="text 3" ❌ Invalid: single_text=="text 1";single_text=="text 2",single_text=="text 3"

Comparison Operators

Comparison Operator	Description
`==`	Equal to
`!=`	Not equal to
`>`	Greater than
`<`	Less than
`>=`	Greater than or equal to
`<=`	Less than or equal to
`=c=`	Contains
`=nc=`	Does not contain

Comparison Values

Usually can be strings/numbers, refer to the examples below:

Example	Type	Description
`text`	string	Text
`"simple text"`	string	Text with spaces, must be wrapped in double quotes
`123`	number	Number
`"123.45"`	number	Float, must be wrapped in double quotes, supports precision matching for number types
`true`,`1`	boolean	For checkbox field type cell values, these two can be true
`false`,`0`	boolean	For checkbox field type cell values, these two can be false
`null`, `NULL`	null	Check if cell value is empty, used with `==`, `!=` for judgment
`("option 1", "option 2")`	array	Array, can be used when cell is represented as array, used with `=c=`, `=nc=`, `==`, `!=`

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Operator	Field Name	Query Example	Description
Equal to	`single_text`	`single_text=="simple text"`	Exact match for cells with specified content
Not equal to	`single_text`	`single_text!="simple text"`	Exact non-match for cells with specified content
Contains	`single_text`	`single_text=c="simple text"`	Cells containing specified content, value must be `string`
Does not contain	`single_text`	`single_text=nc="simple text"`	Cells not containing specified content, value must be `string`
Is empty	`single_text`	`single_text==null` or `single_text==NULL`	Cell content is empty
Is not empty	`single_text`	`single_text!=null` or `single_text!=NULL`	Cell content is not empty

Operator	Field Name	Query Example	Description
Equal to	`number_field`	`number_field==123`	Exact match for cells with specified number
Not equal to	`number_field`	`number_field!=123`	Exact non-match for cells with specified number
Greater than	`number_field`	`number_field>123`	Cells with numbers greater than specified value
Less than	`number_field`	`number_field<123`	Cells with numbers less than specified value
Greater than or equal to	`number_field`	`number_field>=123`	Cells with numbers greater than or equal to specified value
Less than or equal to	`number_field`	`number_field<=123`	Cells with numbers less than or equal to specified value
Is empty	`number_field`	`number_field==null` or `number_field==NULL`	Cell content is empty
Is not empty	`number_field`	`number_field!=null` or `number_field!=NULL`	Cell content is not empty

Operator	Field Name	Query Example	Description
Equal to	`checkbox`	`checkbox==true` or `checkbox==1`	Query rows with checked cells
Equal to	`checkbox`	`checkbox==false` or `checkbox==0`	Query rows with unchecked cells

Operator	Field Name	Query Example	Description
Equal to	`single_select`	`single_select=="Option 1"`	Exact match for cells with specified option
Not equal to	`single_select`	`single_select!="Option 1"`	Exact non-match for cells with specified option
Contains	`single_select`	`single_select=c=("Option 1", "Option 2")`	Cells containing specified options
Does not contain	`single_select`	`single_select=nc=("Option 1", "Option 2")`	Cells not containing specified options
Is empty	`single_select`	`single_select==null` or `single_select==NULL`	Cell content is empty
Is not empty	`single_select`	`single_select!=null` or `single_select!=NULL`	Cell content is not empty

Operator	Field Name	Query Example	Description
Equal to	`multi_select`	`multi_select==("Option 1", "Option 2")`	Exact match for cells with specified options
Not equal to	`multi_select`	`multi_select!=("Option 1", "Option 2")`	Exact non-match for cells with specified options
Contains	`multi_select`	`multi_select=c=("Option 1", "Option 2")`	Cells containing specified options
Does not contain	`multi_select`	`multi_select=nc=("Option 1", "Option 2")`	Cells not containing specified options
Is empty	`multi_select`	`multi_select==null` or `multi_select==NULL`	Cell content is empty
Is not empty	`multi_select`	`multi_select!=null` or `multi_select!=NULL`	Cell content is not empty

Filter Query Language

Filter Query Language

Expression Structure

Operators

Logical Operators

Comparison Operators

Comparison Values

Query Examples

Single Line Text Query

Number Query

Checkbox Query

Single Select Query

Multi Select Query

Date Query

Link Query

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