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hassuffix operator

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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