Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1                    cucumber
     1/2  teaspoon      salt
   1      tablespoon    soy sauce -- (1 1/4 T)
   1      tablespoon    wine vinegar -- (1 1/4 T)
   1      tablespoon    caster -- (superfine) sugar
                        -- (1 1/4 T)
   2      teaspoons     sesame oil

Preparation:

Did some rummaging around in my cookbooks and came up with the following. This first one sounds like it's on the track of the cucumber pickles you had at the Chinese place, though these are diced, not sliced and call for sesame oil rather than seeds. Peel the cucumber and cut into small dice. Sprinkle with remaining ingredients and leave for 5 minutes before serving. Make sure sugar has dissolved before serving. The Gourmet's Guide to Chinese Cooking, Ann Body. 1974, Octopus Books Limited, 59 Grosvenor Street, London W1. ISBN 7064 0153 0. Produced by Mandarin Publications Limited, 22 Westlands Road, Quarry Bay, Hong Kon