hassuffix operator

Applies to: ✅ Microsoft Fabric ✅ Azure Data Explorer ✅ Azure Monitor ✅ Microsoft Sentinel

Filters a record set for data with a case-insensitive ending string. hassuffix returns true if there is a term inside the filtered string column ending with the specified string expression.

The following table compares the hassuffix operators using the abbreviations provided:

• RHS = right-hand side of the expression
• LHS = left-hand side of the expression

Operator	Description	Case-Sensitive	Example (yields true)
hassuffix	RHS is a term suffix in LHS	No	"North America" hassuffix "ica"
!hassuffix	RHS isn't a term suffix in LHS	No	"North America" !hassuffix "americ"
hassuffix_cs	RHS is a term suffix in LHS	Yes	"North America" hassuffix_cs "ica"
!hassuffix_cs	RHS isn't a term suffix in LHS	Yes	"North America" !hassuffix_cs "icA"

For more information about other operators and to determine which operator is most appropriate for your query, see datatype string operators.

Performance tips

Note

Performance depends on the type of search and the structure of the data. For best practices, see Query best practices.

When possible, use the case-sensitive hassuffix_cs.

Note

Text index cannot be fully utilized for this function, therefore the performance of this function is comparable to endswith function, though the semantics is different.

Syntax

T | where Column hassuffix (Expression)

Learn more about syntax conventions.

Parameters

Name	Type	Required	Description
T	string	The tabular input whose records are to be filtered.
Column	string	The column by which to filter.
Expression	scalar	The scalar or literal expression for which to search.

Returns

Rows in T for which the predicate is true.

Example

Run the query

StormEvents
| summarize event_count=count() by State
| where State hassuffix "o"
| project State, event_count

Output

State	event_count
COLORADO	1654
OHIO	1233
GULF OF MEXICO	577
NEW MEXICO	527
IDAHO	247
PUERTO RICO	192
LAKE ONTARIO	8