redis commands hashes hls

HLS

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Get fields and values by a field-name pattern

The usage is hls key field.
You can use a glob-style pattern for Field.

• * : Matches any characters: h*llo -> hllo, heeeello, etc
• ? : Matches one character: h?llo -> hallo, hello, hxllo, etc
• [alphabet] : Matches a character in the brackets: h[ae]llo -> hallo, hello
  
• [^e] : Matches any character except those in the brackets: h[^e]llo -> hallo, hbllo, ... but hello is excluded.
  
• [a-c] : Matches a character range in the brackets: h[a-c]llo -> hallo, hbllo, hcllo
• \ : To use the special characters above (*?[^]) as literals, prefix them with \.

Sort feature

Use Sort or asc for ascending order, and desc for descending order. Sorting is by field name.

Syntax

HLS key field-pattern [sort|asc|desc]

• Available since Enterprise version 6.1.0.
• Time complexity is O(N). N is the number of data items.
• If there are many values, it can affect performance, so use it carefully.