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| 1 | +{# most of this code is from https://github.com/jacobm001/dbt-mssql/blob/master/dbt/include/mssql/macros/indexes.sql #} |
| 2 | + |
| 3 | +{% macro drop_xml_indexes() -%} |
| 4 | +{# Altered from https://stackoverflow.com/q/1344401/10415173 #} |
| 5 | +{# and https://stackoverflow.com/a/33785833/10415173 #} |
| 6 | + |
| 7 | + |
| 8 | +{{ log("Running drop_xml_indexes() macro...") }} |
| 9 | + |
| 10 | +declare @drop_xml_indexes nvarchar(max); |
| 11 | +select @drop_xml_indexes = ( |
| 12 | + select 'IF INDEXPROPERTY(' + CONVERT(VARCHAR(MAX), sys.tables.[object_id]) + ', ''' + sys.indexes.[name] + ''', ''IndexId'') IS NOT NULL DROP INDEX [' + sys.indexes.[name] + '] ON ' + '[' + SCHEMA_NAME(sys.tables.[schema_id]) + '].[' + OBJECT_NAME(sys.tables.[object_id]) + ']; ' |
| 13 | + from sys.indexes |
| 14 | + inner join sys.tables on sys.indexes.object_id = sys.tables.object_id |
| 15 | + where sys.indexes.[name] is not null |
| 16 | + and sys.indexes.type_desc = 'XML' |
| 17 | + and sys.tables.[name] = '{{ this.table }}' |
| 18 | + for xml path('') |
| 19 | +); exec sp_executesql @drop_xml_indexes; |
| 20 | + |
| 21 | +{%- endmacro %} |
| 22 | + |
| 23 | + |
| 24 | +{% macro drop_spatial_indexes() -%} |
| 25 | +{# Altered from https://stackoverflow.com/q/1344401/10415173 #} |
| 26 | +{# and https://stackoverflow.com/a/33785833/10415173 #} |
| 27 | + |
| 28 | +{{ log("Running drop_spatial_indexes() macro...") }} |
| 29 | + |
| 30 | +declare @drop_spatial_indexes nvarchar(max); |
| 31 | +select @drop_spatial_indexes = ( |
| 32 | + select 'IF INDEXPROPERTY(' + CONVERT(VARCHAR(MAX), sys.tables.[object_id]) + ', ''' + sys.indexes.[name] + ''', ''IndexId'') IS NOT NULL DROP INDEX [' + sys.indexes.[name] + '] ON ' + '[' + SCHEMA_NAME(sys.tables.[schema_id]) + '].[' + OBJECT_NAME(sys.tables.[object_id]) + ']; ' |
| 33 | + from sys.indexes |
| 34 | + inner join sys.tables on sys.indexes.object_id = sys.tables.object_id |
| 35 | + where sys.indexes.[name] is not null |
| 36 | + and sys.indexes.type_desc = 'Spatial' |
| 37 | + and sys.tables.[name] = '{{ this.table }}' |
| 38 | + for xml path('') |
| 39 | +); exec sp_executesql @drop_spatial_indexes; |
| 40 | + |
| 41 | +{%- endmacro %} |
| 42 | + |
| 43 | + |
| 44 | +{% macro drop_fk_constraints() -%} |
| 45 | +{# Altered from https://stackoverflow.com/q/1344401/10415173 #} |
| 46 | + |
| 47 | +{{ log("Running drop_fk_constraints() macro...") }} |
| 48 | + |
| 49 | +declare @drop_fk_constraints nvarchar(max); |
| 50 | +select @drop_fk_constraints = ( |
| 51 | + select 'IF OBJECT_ID(''' + SCHEMA_NAME(CONVERT(VARCHAR(MAX), sys.foreign_keys.[schema_id])) + '.' + sys.foreign_keys.[name] + ''', ''F'') IS NOT NULL ALTER TABLE [' + SCHEMA_NAME(sys.foreign_keys.[schema_id]) + '].[' + OBJECT_NAME(sys.foreign_keys.[parent_object_id]) + '] DROP CONSTRAINT [' + sys.foreign_keys.[name]+ '];' |
| 52 | + from sys.foreign_keys |
| 53 | + inner join sys.tables on sys.foreign_keys.[referenced_object_id] = sys.tables.[object_id] |
| 54 | + where sys.tables.[name] = '{{ this.table }}' |
| 55 | + for xml path('') |
| 56 | +); exec sp_executesql @drop_fk_constraints; |
| 57 | + |
| 58 | +{%- endmacro %} |
| 59 | + |
| 60 | + |
| 61 | +{% macro drop_pk_constraints() -%} |
| 62 | +{# Altered from https://stackoverflow.com/q/1344401/10415173 #} |
| 63 | +{# and https://stackoverflow.com/a/33785833/10415173 #} |
| 64 | + |
| 65 | +{{ drop_xml_indexes() }} |
| 66 | + |
| 67 | +{{ drop_spatial_indexes() }} |
| 68 | + |
| 69 | +{{ drop_fk_constraints() }} |
| 70 | + |
| 71 | +{{ log("Running drop_pk_constraints() macro...") }} |
| 72 | + |
| 73 | +declare @drop_pk_constraints nvarchar(max); |
| 74 | +select @drop_pk_constraints = ( |
| 75 | + select 'IF INDEXPROPERTY(' + CONVERT(VARCHAR(MAX), sys.tables.[object_id]) + ', ''' + sys.indexes.[name] + ''', ''IndexId'') IS NOT NULL ALTER TABLE [' + SCHEMA_NAME(sys.tables.[schema_id]) + '].[' + sys.tables.[name] + '] DROP CONSTRAINT [' + sys.indexes.[name]+ '];' |
| 76 | + from sys.indexes |
| 77 | + inner join sys.tables on sys.indexes.[object_id] = sys.tables.[object_id] |
| 78 | + where sys.indexes.is_primary_key = 1 |
| 79 | + and sys.tables.[name] = '{{ this.table }}' |
| 80 | + for xml path('') |
| 81 | +); exec sp_executesql @drop_pk_constraints; |
| 82 | + |
| 83 | +{%- endmacro %} |
| 84 | + |
| 85 | + |
| 86 | +{% macro drop_all_indexes_on_table() -%} |
| 87 | +{# Altered from https://stackoverflow.com/q/1344401/10415173 #} |
| 88 | +{# and https://stackoverflow.com/a/33785833/10415173 #} |
| 89 | + |
| 90 | +{{ drop_pk_constraints() }} |
| 91 | + |
| 92 | +{{ log("Dropping remaining indexes...") }} |
| 93 | + |
| 94 | +declare @drop_remaining_indexes_last nvarchar(max); |
| 95 | +select @drop_remaining_indexes_last = ( |
| 96 | + select 'IF INDEXPROPERTY(' + CONVERT(VARCHAR(MAX), sys.tables.[object_id]) + ', ''' + sys.indexes.[name] + ''', ''IndexId'') IS NOT NULL DROP INDEX [' + sys.indexes.[name] + '] ON ' + '[' + SCHEMA_NAME(sys.tables.[schema_id]) + '].[' + OBJECT_NAME(sys.tables.[object_id]) + ']; ' |
| 97 | + from sys.indexes |
| 98 | + inner join sys.tables on sys.indexes.object_id = sys.tables.object_id |
| 99 | + where sys.indexes.[name] is not null |
| 100 | + and sys.tables.[name] = '{{ this.table }}' |
| 101 | + for xml path('') |
| 102 | +); exec sp_executesql @drop_remaining_indexes_last; |
| 103 | + |
| 104 | +{%- endmacro %} |
| 105 | + |
| 106 | + |
| 107 | +{% macro create_clustered_index(columns, unique=False) -%} |
| 108 | + |
| 109 | +{{ log("Creating clustered index...") }} |
| 110 | + |
| 111 | +create |
| 112 | +{% if unique -%} |
| 113 | +unique |
| 114 | +{% endif %} |
| 115 | +clustered index |
| 116 | + {{ this.table }}__clustered_index_on_{{ columns|join("_") }} |
| 117 | + on {{ this }} ({{ '[' + columns|join("], [") + ']' }}) |
| 118 | + |
| 119 | +{%- endmacro %} |
| 120 | + |
| 121 | + |
| 122 | +{% macro create_nonclustered_index(columns, includes=False) %} |
| 123 | + |
| 124 | +{{ log("Creating nonclustered index...") }} |
| 125 | + |
| 126 | +create nonclustered index |
| 127 | + {{ this.table }}__index_on_{{ columns|join("_") }} |
| 128 | + on {{ this }} ({{ '[' + columns|join("], [") + ']' }}) |
| 129 | + {% if includes -%} |
| 130 | + include ({{ '[' + includes|join("], [") + ']' }}) |
| 131 | + {% endif %} |
| 132 | + |
| 133 | +{% endmacro %} |
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