fix: column names not being read due to the spaces (RedHatInsights#2518)

The Business Insights team cannot properly index the columns which have
spaces on them, so the goal of these changes is to replace them with
underscores. And since we're at it, in order to make it consistent
everywhere and with every query, we are also naming all the columns in
lowercase.

RHCLOUD-31387

.rhcicd/floorist/floorplan.yaml

@@ -21,19 +21,19 @@ objects:
       - prefix: insights/notifications/behavior_groups_event_types_org_id
         query: >-
           SELECT
-            bun.display_name AS bundle,
-            apps.display_name AS application,
-            et.display_name AS event_type,
-            bg.org_id,
+            bun.display_name::TEXT AS bundle,
+            apps.display_name::TEXT AS application,
+            et.display_name::TEXT AS event_type,
+            bg.org_id::TEXT,
             EXISTS (
               SELECT
                 1
               FROM
                 behavior_group_action AS bga
               WHERE
                 bga.behavior_group_id = etb.behavior_group_id
-            ) AS actively_used,
-            count(bg.*) AS "count"
+            )::BOOLEAN AS actively_used,
+            count(bg.*)::INTEGER AS "count"
           FROM
             event_type_behavior AS etb
           INNER JOIN
@@ -61,10 +61,10 @@ objects:
       - prefix: insights/notifications/endpoint_types
         query: >-
           SELECT
-            sub."Endpoint type"::TEXT,
-            COUNT(*) AS "Count",
-            sub."Enabled"::TEXT,
-            sub."Actively used"::TEXT
+            sub.endpoint_type::TEXT,
+            sub.enabled::BOOLEAN,
+            sub.actively_used::BOOLEAN,
+            COUNT(*)::INTEGER AS "count"
           FROM
             (
               SELECT
@@ -76,8 +76,8 @@ objects:
                   LOWER(e.endpoint_sub_type)
                 ELSE
                   LOWER(e.endpoint_type_v2)
-              END AS "Endpoint type",
-              e.enabled AS "Enabled",
+              END AS endpoint_type,
+              e.enabled AS enabled,
               -- If the endpoint has an associated event type and a behavior
               -- group, then that means that it is actively being used.
               EXISTS (
@@ -89,24 +89,24 @@ objects:
                   event_type_behavior AS etb ON etb.behavior_group_id = bga.behavior_group_id
                 WHERE
                   bga.endpoint_id = e.id
-                ) AS "Actively used"
+                ) AS actively_used
               FROM
                 endpoints AS e
               WHERE
                 e.org_id NOT IN (${FLOORIST_INTERNAL_ORG_IDS_FILTER})
             ) AS sub
           GROUP BY
-            sub."Endpoint type",
-            sub."Enabled",
-            sub."Actively used";
+            sub.endpoint_type,
+            sub.enabled,
+            sub.actively_used;
       - prefix: insights/notifications/endpoint_types_by_org_id
         query: >-
           SELECT
-              sub.endpoint_type,
-              sub.org_id,
-              COUNT(*) AS "count",
-              sub.enabled,
-              sub.actively_used
+            sub.org_id::TEXT,
+            sub.endpoint_type::TEXT,
+            sub.enabled::BOOLEAN,
+            sub.actively_used::BOOLEAN,
+            COUNT(*)::INTEGER AS "count"
           FROM
             (
               SELECT
@@ -145,11 +145,11 @@ objects:
       - prefix: insights/notifications/email_subscriptions
         query: >-
           SELECT
-            b.display_name::TEXT AS "Bundle",
-            a.display_name::TEXT AS "Application",
-            et.display_name::TEXT AS "Event type",
-            es.subscription_type::TEXT AS "Subscription type",
-            COUNT(es.*) AS "Count"
+            b.display_name::TEXT AS bundle,
+            a.display_name::TEXT AS application,
+            et.display_name::TEXT AS event_type,
+            es.subscription_type::TEXT AS subscription_type,
+            COUNT(es.*)::INTEGER AS "count"
           FROM
             email_subscriptions AS es
           INNER JOIN