basic queries

pkg/services/store/resource/sqlstash/data/common.sql

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+{{/*
+  This is the list of all the fields in *entity.Entity, in a way that is
+  suitable to be imported by other templates that need to select these fields
+  from either the "entity" or the "entity_history" tables.
+
+  Example usage:
+
+    SELECT {{ template "common_entity_select_into" . }}
+        FROM {{ .Ident "entity" }} AS e
+
+*/}}
+{{ define "common_entity_select_into" }}
+
+    e.{{ .Ident "guid"             | .Into .Entity.Guid }},
+    e.{{ .Ident "resource_version" | .Into .Entity.ResourceVersion }},
+
+    e.{{ .Ident "key"              | .Into .Entity.Key }},
+
+    e.{{ .Ident "group"            | .Into .Entity.Group }},
+    e.{{ .Ident "group_version"    | .Into .Entity.GroupVersion }},
+    e.{{ .Ident "resource"         | .Into .Entity.Resource }},
+    e.{{ .Ident "namespace"        | .Into .Entity.Namespace }},
+    e.{{ .Ident "name"             | .Into .Entity.Name }},
+
+    e.{{ .Ident "folder"           | .Into .Entity.Folder }},
+
+    e.{{ .Ident "meta"             | .Into .Entity.Meta }},
+    e.{{ .Ident "body"             | .Into .Entity.Body }},
+    e.{{ .Ident "status"           | .Into .Entity.Status }},
+
+    e.{{ .Ident "size"             | .Into .Entity.Size }},
+    e.{{ .Ident "etag"             | .Into .Entity.ETag }},
+
+    e.{{ .Ident "created_at"       | .Into .Entity.CreatedAt }},
+    e.{{ .Ident "created_by"       | .Into .Entity.CreatedBy }},
+    e.{{ .Ident "updated_at"       | .Into .Entity.UpdatedAt }},
+    e.{{ .Ident "updated_by"       | .Into .Entity.UpdatedBy }},
+
+    e.{{ .Ident "origin"           | .Into .Entity.Origin.Source }},
+    e.{{ .Ident "origin_key"       | .Into .Entity.Origin.Key }},
+    e.{{ .Ident "origin_ts"        | .Into .Entity.Origin.Time }},
+
+    e.{{ .Ident "title"            | .Into .Entity.Title }},
+    e.{{ .Ident "slug"             | .Into .Entity.Slug }},
+    e.{{ .Ident "description"      | .Into .Entity.Description }},
+
+    e.{{ .Ident "message"          | .Into .Entity.Message }},
+    e.{{ .Ident "labels"           | .Into .Entity.Labels }},
+    e.{{ .Ident "fields"           | .Into .Entity.Fields }},
+    e.{{ .Ident "errors"           | .Into .Entity.Errors }},
+
+    e.{{ .Ident "action"           | .Into .Entity.Action }}
+{{ end }}
+
+{{/* Build an ORDER BY clause from a []SortBy contained in a .Sort field */}}
+{{ define "common_order_by" }}
+    {{ $comma := listSep ", " }}
+    {{ range .Sort }}
+        {{- call $comma -}} {{ $.Ident .Field }} {{ .Direction.String }}
+    {{ end }}
+{{ end }}

pkg/services/store/resource/sqlstash/data/resource_get.sql

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+SELECT 
+    {{ .Ident "rv"    | .Into .Resource.Version }},
+    {{ .Ident "value" | .Into .Resource.Value }},
+    {{ .Ident "blob"  | .Into .Resource.Blob }},
+
+FROM "resource"
+
+    WHERE 1 = 1
+        AND {{ .Ident "namespace" }} = {{ .Arg .Key.Namespace }}
+        AND {{ .Ident "group" }}     = {{ .Arg .Key.Group }}
+        AND {{ .Ident "resource" }}  = {{ .Arg .Key.Resource }}
+        AND {{ .Ident "name" }}      = {{ .Arg .Key.Name }}
+
+      {{/*
+        Resource versions work like snapshots at the kind level. Thus, a request
+        to retrieve a specific resource version should be interpreted as asking
+        for a resource as of how it existed at that point in time. This is why we
+        request matching entities with at most the provided resource version, and
+        return only the one with the highest resource version. In the case of not
+        specifying a resource version (i.e. resource version zero), it is
+        interpreted as the latest version of the given entity, thus we instead
+        query the "entity" table (which holds only the latest version of
+        non-deleted entities) and we don't need to specify anything else. The
+        "entity" table has a unique constraint on (namespace, group, resource,
+        name), so we're guaranteed to have at most one matching row.
+      */}}
+      {{ if gt .ResourceVersion 0 }}
+            AND {{ .Ident "rv" }} <= {{ .Arg .ResourceVersion }}
+
+          ORDER BY {{ .Ident "rv" }} DESC
+          LIMIT 1
+      {{ end }}
+
+      {{ if .SelectForUpdate }}
+          {{ .SelectFor "UPDATE NOWAIT" }}
+      {{ end }}
+;

pkg/services/store/resource/sqlstash/data/resource_insert.sql

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+INSERT INTO "resource"
+    {{/* Explicitly specify fields that will be set */}}
+    (
+        {{ .Ident "event" }},
+        {{ .Ident "group" }},
+        {{ .Ident "api_version" }},
+        {{ .Ident "namespace" }},
+        {{ .Ident "resource" }},
+        {{ .Ident "name" }},
+        {{ .Ident "operation" }},
+        {{ .Ident "message" }},
+        {{ .Ident "value" }},
+        {{ .Ident "hash" }},
+        {{ .Ident "blob" }},
+    )
+
+    {{/* Provide the values */}}
+    VALUES (
+        {{ .Arg .Event.ID }},
+        {{ .Arg .Event.Group }},
+        {{ .Arg .Event.ApiVersion }},
+        {{ .Arg .Event.Namespace }},
+        {{ .Arg .Event.Resource }},
+        {{ .Arg .Event.Name }},
+        {{ .Arg .Event.Operation }},
+        {{ .Arg .Event.Message }},
+        {{ .Arg .Event.Value }},
+        {{ .Arg .Event.Hash }},
+        {{ .Arg .Event.Blob }},
+    )
+;

pkg/services/store/resource/sqlstash/data/rv_get.sql

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+SELECT
+    {{ .Ident "rv" | .Into .ResourceVersion }}
+
+    FROM {{ .Ident "resource_version" }}
+    WHERE 1 = 1
+        AND {{ .Ident "group" }}         = {{ .Arg .Group }}
+        AND {{ .Ident "resource" }}      = {{ .Arg .Resource }}
+;

pkg/services/store/resource/sqlstash/data/rv_inc.sql

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+UPDATE {{ .Ident "resource_version" }}
+    SET
+        {{ .Ident "rv" }} = {{ .Arg .ResourceVersion }} + 1,
+
+    WHERE 1 = 1
+        AND {{ .Ident "group" }}    = {{ .Arg .Group }}
+        AND {{ .Ident "resource" }} = {{ .Arg .Resource }}
+        AND {{ .Ident "rv" }}       = {{ .Arg .ResourceVersion }}
+;

pkg/services/store/resource/sqlstash/data/rv_insert.sql

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+INSERT INTO {{ .Ident "resource_version" }}
+    (
+        {{ .Ident "group" }},
+        {{ .Ident "resource" }},
+        {{ .Ident "rv" }},
+    )
+
+    VALUES (
+        {{ .Arg .Group }},
+        {{ .Arg .Resource }},
+        1,
+    )
+;

pkg/services/store/resource/sqlstash/data/rv_lock.sql

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+SELECT {{ .Ident "rv" | .Into .ResourceVersion }}
+    FROM {{ .Ident "resource_version" }}
+    WHERE 1 = 1
+        AND {{ .Ident "group" }}    = {{ .Arg .Group }}
+        AND {{ .Ident "resource" }} = {{ .Arg .Resource }}
+    {{ .SelectFor "UPDATE" }}
+;