PhpStorm: Identifiers are automatically quoted, even variables

PhpStorm is adding errors into my code whenever I let the automatic code inspection run. I like using it when committing, because it fixes my indentation.

Here's my code with testing values before the commit:

/**
 * Calculates and selects the average score of a single user.
 * This will also have to calculate the score in different criteria.
 */

DECLARE @Max_Grade INTEGER
SET @Max_Grade = 6

DECLARE @User_ID INTEGER
SET @User_ID = 16

DECLARE @Basic_Weight INTEGER
SET @Basic_Weight = 10

DECLARE @Daily_Weight FLOAT
SET @Daily_Weight = 0.5

-- Create temporary utility table.
-- This table will contain each appraisal and its maximum score vs. total score of all
-- questions.
DECLARE @Score_Table TABLE
(
  [Appraisal_ID]  INTEGER,
  [Total_Score]   FLOAT,
  [Maximum_Score] FLOAT
)

INSERT INTO @Score_Table (
  [Appraisal_ID],
  [Total_Score],
  [Maximum_Score]
) (
  SELECT
      [Appraisal].[Appraisal_ID] AS [Appraisal_ID]
    , SUM(
          [Question].[Grade] *
          (
            @Basic_Weight +
            @Daily_Weight * DATEDIFF(DAY, [Plan].[From_Time], [Plan].[To_Time])
          )
      )
                                 AS [Total_Score]
    , SUM(
          @Max_Grade *
          (
            @Basic_Weight +
            @Daily_Weight * DATEDIFF(DAY, [Plan].[From_Time], [Plan].[To_Time])
          )
      )
                                 AS [Maximum_Score]
  FROM
    [Question], [Appraisal], [Plan]
  WHERE
    [Question].[Grade] IS NOT NULL AND
    [Question].[Grade] != 0 AND
    [Appraisal].[Appraisal_ID] = [Question].[Appraisal_ID] AND
    [Plan].[Plan_ID] = [Appraisal].[Plan_ID] AND
    [Appraisal].[User_ID_Candidate] = @User_ID AND
    [Appraisal].[Disabled] IS NULL AND

    -- DONE Criterium: Only count those appraisals that are completed
    [Appraisal].[Choice_Candidate] IS NOT NULL AND
    [Appraisal].[Choice_Candidate] <> 0 AND
    [Appraisal].[Choice_Owner] IS NOT NULL AND
    [Appraisal].[Choice_Owner] <> 0

  GROUP BY [Appraisal].[Appraisal_ID]
)

SELECT
  NULL,
  -- Calculate the end result by dividing the final results and multiplaying by maximum grade
  (
    SUM([Total_Score]) /
    SUM([Maximum_Score])
  ) * @Max_Grade
FROM @Score_Table

UNION

-- Select all grades as floats
SELECT
  [Appraisal_ID],

  -- Divide the actual weighted grade by the maximum weighted grade and multiply it by the maximum grade to get the
  -- average score of each
  -- appraisal.

  -- Total Score:
  [Total_Score] /
  -- Divided by Maximum Score:
  [Maximum_Score] * @Max_Grade
    AS [Average_Grade]

FROM @Score_Table

Committing and letting the automatic code scan run will change several lines, putting three variables all over the code into [brackets] - all occurrences except for their declarations.

/**
 * Calculates and selects the average score of a single user.
 * This will also have to calculate the score in different criteria.
 */

DECLARE @Max_Grade INTEGER
SET @Max_Grade = 6

DECLARE @User_ID INTEGER
SET @User_ID = 16

DECLARE @Basic_Weight INTEGER
SET @Basic_Weight = 10

DECLARE @Daily_Weight FLOAT
SET @Daily_Weight = 0.5

-- Create temporary utility table.
-- This table will contain each appraisal and its maximum score vs. total score of all
-- questions.
DECLARE [@Score_Table] TABLE
(
  [Appraisal_ID]  INTEGER,
  [Total_Score]   FLOAT,
  [Maximum_Score] FLOAT
)

INSERT INTO [@Score_Table] (
  [Appraisal_ID],
  [Total_Score],
  [Maximum_Score]
) (
  SELECT
      [Appraisal].[Appraisal_ID] AS [Appraisal_ID]
    , SUM(
          [Question].[Grade] *
          (
            [@Basic_Weight] +
            [@Daily_Weight] * DATEDIFF(DAY, [Plan].[From_Time], [Plan].[To_Time])
          )
      )
                                 AS [Total_Score]
    , SUM(
          [@Max_Grade] *
          (
            [@Basic_Weight] +
            [@Daily_Weight] * DATEDIFF(DAY, [Plan].[From_Time], [Plan].[To_Time])
          )
      )
                                 AS [Maximum_Score]
  FROM
    [Question], [Appraisal], [Plan]
  WHERE
    [Question].[Grade] IS NOT NULL AND
    [Question].[Grade] != 0 AND
    [Appraisal].[Appraisal_ID] = [Question].[Appraisal_ID] AND
    [Plan].[Plan_ID] = [Appraisal].[Plan_ID] AND
    [Appraisal].[User_ID_Candidate] = @User_ID AND
    [Appraisal].[Disabled] IS NULL AND

    -- DONE Criterium: Only count those appraisals that are completed
    [Appraisal].[Choice_Candidate] IS NOT NULL AND
    [Appraisal].[Choice_Candidate] <> 0 AND
    [Appraisal].[Choice_Owner] IS NOT NULL AND
    [Appraisal].[Choice_Owner] <> 0

  GROUP BY [Appraisal].[Appraisal_ID]
)

SELECT
  NULL,
  -- Calculate the end result by dividing the final results and multiplaying by maximum grade
  (
    SUM([Total_Score]) /
    SUM([Maximum_Score])
  ) * @Max_Grade
FROM @Score_Table

UNION

-- Select all grades as floats
SELECT
  [Appraisal_ID],

  -- Divide the actual weighted grade by the maximum weighted grade and multiply it by the maximum grade to get the
  -- average score of each
  -- appraisal.

  -- Total Score:
  [Total_Score] /
  -- Divided by Maximum Score:
  [Maximum_Score] * @Max_Grade
    AS [Average_Grade]

FROM @Score_Table

All four variables except for @User_ID are automatically quoted. Unfortunately, the script breaks in lines 21, 77 and 95 because of the inconsistent quoting of variables. I don't think you could even declare them if you quote them.

The feature is disabled in both the IDE config and the project default config:

I've tried code inspection with and without this option.

Version/About:

Could anyone point me into the right direction? I could exclude the file from the automatic code inspection, but before I start excluding several files because of this issue, I'd like to hear alternative solutions.

Solution

Solution:

As @LazyOne said, the Code Style must be edited. There's an option to change Identifier Quotation. Mine was on.