Flowdock
method

index_exists?

Importance_1
index_exists?(table_name, column_name, options = {}) public

Checks to see if an index exists on a table for a given index definition

Examples

 # Check an index exists
 index_exists?(:suppliers, :company_id)

 # Check an index on multiple columns exists
 index_exists?(:suppliers, [:company_id, :company_type])

 # Check a unique index exists
 index_exists?(:suppliers, :company_id, :unique => true)

 # Check an index with a custom name exists
 index_exists?(:suppliers, :company_id, :name => "idx_company_id"
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