module ActiveRecord::ConnectionAdapters::DatabaseLimits
Public Instance Methods
allowed_index_name_length()
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Returns the maximum allowed length for an index name. This limit is enforced by Rails and is less than or equal to index_name_length
. The gap between index_name_length
is to allow internal Rails operations to use prefixes in temporary operations.
# File lib/active_record/connection_adapters/abstract/database_limits.rb, line 20 def allowed_index_name_length index_name_length end
in_clause_length()
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Returns the maximum number of elements in an IN (x,y,z) clause. nil
means no limit.
# File lib/active_record/connection_adapters/abstract/database_limits.rb, line 32 def in_clause_length nil end
index_name_length()
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Returns the maximum length of an index name.
# File lib/active_record/connection_adapters/abstract/database_limits.rb, line 26 def index_name_length max_identifier_length end
table_alias_length()
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Returns the maximum length of a table alias.
# File lib/active_record/connection_adapters/abstract/database_limits.rb, line 11 def table_alias_length max_identifier_length end
Private Instance Methods
bind_params_length()
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# File lib/active_record/connection_adapters/abstract/database_limits.rb, line 38 def bind_params_length 65535 end