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2cc7204c7f
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2cc7204c7f | |||
e047e7f39b |
@ -1,45 +1,47 @@
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-- CREATE OR ALTER FUNCTION pricing.approval_logic;
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CREATE OR ALTER FUNCTION pricing.approval_logic(
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@target numeric(20,5),
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@last_norm numeric(20,5),
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@list_eff numeric(20,5),
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@last_date date,
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@floor_pct numeric(10,5) = 0.05,
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@floor_pct numeric(10,5) = 0.95,
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@cap_last_pct numeric(10,5) = 1.00,
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@cap_list_pct numeric(10,5) = 1.00
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)
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RETURNS @ret TABLE (
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guidance_price numeric(20,5),
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guidance_reason nvarchar(4000)
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approval_price numeric(20,5),
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approval_reason nvarchar(4000)
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)
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AS
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BEGIN
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DECLARE
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@base_price numeric(20,5),
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@after_floor numeric(20,5),
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@after_cap_last numeric(20,5),
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@final_price numeric(20,5),
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@reason nvarchar(4000) = N'';
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@base_price numeric(20,5), -- starting point (target if available, else last_norm, else list_eff)
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@after_floor numeric(20,5), -- base but limited to x% lower than last price
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@after_cap_last numeric(20,5), -- previous step but limited to x% higher than last price
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@final_price numeric(20,5), -- previous step but limited to x% higher than list price
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@reason nvarchar(4000) = N''; -- logic source of price
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-- no target → early return
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IF @target IS NULL
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-- Early exit if nothing to work with
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IF @target IS NULL AND @last_norm IS NULL AND @list_eff IS NULL
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BEGIN
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INSERT INTO @ret VALUES (NULL, N'No target price available');
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INSERT INTO @ret VALUES (NULL, N'No target, last, or list available');
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RETURN;
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END;
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-- start from target
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SET @base_price = @target;
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-- Pick starting base price
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SET @base_price = COALESCE(@target, @last_norm, @list_eff);
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-- Step 1: floor vs last_norm (only if it raises price)
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-- Step 1: use base price unless it's more than x% below last price
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SET @after_floor = @base_price;
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IF @last_norm IS NOT NULL AND @floor_pct > 0
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IF @last_norm IS NOT NULL
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SET @after_floor = ROUND(
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CASE WHEN @base_price >= @last_norm*(1-@floor_pct)
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CASE WHEN @base_price >= @last_norm*@floor_pct
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THEN @base_price
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ELSE @last_norm*(1-@floor_pct)
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ELSE @last_norm*@floor_pct
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END, 5);
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-- Step 2: cap vs last_norm (only if it lowers price)
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-- Step 2: use price from previous step but don't allow it to be x% above last price
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SET @after_cap_last = @after_floor;
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IF @last_norm IS NOT NULL
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SET @after_cap_last = ROUND(
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@ -48,7 +50,7 @@ BEGIN
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ELSE @last_norm*@cap_last_pct
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END, 5);
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-- Step 3: cap vs list_eff (only if it lowers price)
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-- Step 3: use price from last step, but don't allow it to be more than x% above list price
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SET @final_price = @after_cap_last;
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IF @list_eff IS NOT NULL
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SET @final_price = ROUND(
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@ -57,35 +59,23 @@ BEGIN
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ELSE @list_eff*@cap_list_pct
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END, 5);
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-- Build explanation
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IF @last_norm IS NULL AND @list_eff IS NULL
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BEGIN
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SET @reason = N'No prior sale or list; using target price';
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END
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ELSE
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BEGIN
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SET @reason = N'Using target price';
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-- Reason text
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SET @reason =
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CASE
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WHEN @target IS NOT NULL THEN N'Using target price'
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WHEN @last_norm IS NOT NULL THEN N'Using last price as base'
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WHEN @list_eff IS NOT NULL THEN N'Using list price as base'
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END;
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-- mention floor only if it raised the price
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IF @last_norm IS NOT NULL AND @floor_pct > 0 AND @after_floor > @base_price
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SET @reason += N', floored to ' + FORMAT(@floor_pct*100, '0.##') + N'% below last price';
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IF @last_norm IS NOT NULL AND @after_floor > @base_price
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SET @reason = N'Last price drop limit';
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-- mention last cap only if it lowered the price
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IF @last_norm IS NOT NULL AND @after_cap_last < @after_floor
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SET @reason += CASE WHEN @cap_last_pct = 1
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THEN N', capped to not exceed last price'
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ELSE N', capped to ' + FORMAT(@cap_last_pct*100,'0.##') + N'% of last price'
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END;
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-- mention list cap only if it lowered the price
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IF @list_eff IS NOT NULL AND @final_price < @after_cap_last
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SET @reason += CASE WHEN @cap_list_pct = 1
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THEN N', capped to not exceed list price'
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ELSE N', capped to ' + FORMAT(@cap_list_pct*100,'0.##') + N'% of list price'
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END;
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END;
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IF @last_norm IS NOT NULL AND @after_cap_last < @after_floor
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SET @reason = N'Last price increase limit';
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IF @list_eff IS NOT NULL AND @final_price < @after_cap_last
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SET @reason = N'List price ceiling';
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INSERT INTO @ret VALUES (@final_price, @reason);
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RETURN;
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END;
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@ -31,34 +31,6 @@ BEGIN
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-- Pick starting base price
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SET @base_price = COALESCE(@target, @last_norm, @list_eff);
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-- Step 1: use base price unless it's more than x% below last price
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SET @after_floor = @base_price;
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IF @last_norm IS NOT NULL
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SET @after_floor = ROUND(
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CASE WHEN @base_price >= @last_norm*@floor_pct
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THEN @base_price
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ELSE @last_norm*@floor_pct
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END, 5);
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-- Step 2: use price from previous step but don't allow it to be x% above last price
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SET @after_cap_last = @after_floor;
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IF @last_norm IS NOT NULL
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SET @after_cap_last = ROUND(
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CASE WHEN @after_floor <= @last_norm*@cap_last_pct
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THEN @after_floor
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ELSE @last_norm*@cap_last_pct
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END, 5);
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-- Step 3: use price from last step, but don't allow it to be more than x% above list price
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SET @final_price = @after_cap_last;
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IF @list_eff IS NOT NULL
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SET @final_price = ROUND(
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CASE WHEN @after_cap_last <= @list_eff*@cap_list_pct
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THEN @after_cap_last
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ELSE @list_eff*@cap_list_pct
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END, 5);
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-- Reason text
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SET @reason =
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CASE
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@ -67,14 +39,22 @@ BEGIN
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WHEN @list_eff IS NOT NULL THEN N'Using list price as base'
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END;
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IF @last_norm IS NOT NULL AND @after_floor > @base_price
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SET @reason = N'Last price drop limit';
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-- Step 1: use base price less than last price, use last price
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IF @base_price < @last_norm
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BEGIN
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SET @base_price = @last_norm;
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SET @reason = N'Last price';
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END
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IF @last_norm IS NOT NULL AND @after_cap_last < @after_floor
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SET @reason = N'Last price increase limit';
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IF @list_eff IS NOT NULL AND @final_price < @after_cap_last
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SET @reason = N'List price ceiling';
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-- Step 2: use price from previous step but don't allow it to be x% above last price
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IF @base_price > @list_eff
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BEGIN
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SET @base_price = @list_eff;
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SET @reason = N'List price ceiling';
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END
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SET @final_price = @base_price;
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INSERT INTO @ret VALUES (@final_price, @reason);
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RETURN;
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@ -136,8 +136,8 @@ BEGIN
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------------step 6 compute guidance------------
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guidance_price NUMERIC(20,5),
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guidance_reason NVARCHAR(MAX),
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shown_price NUMERIC(20,5),
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shown_logic NVARCHAR(MAX),
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approval_price NUMERIC(20,5),
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approval_reason NVARCHAR(MAX),
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------------step 7 build json------------------
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expl NVARCHAR(MAX),
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ui_json NVARCHAR(MAX)
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@ -379,6 +379,8 @@ BEGIN
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SET
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guidance_price = g.guidance_price
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,guidance_reason = g.guidance_reason
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,approval_price = a.approval_price
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,approval_reason = a.approval_reason
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FROM @queue q
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CROSS APPLY pricing.guidance_logic(
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TRY_CAST(q.tprice AS NUMERIC(20,5)),
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@ -391,7 +393,19 @@ BEGIN
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1.0,
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--cap on list percent
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1.0
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) g;
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) g
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CROSS APPLY pricing.approval_logic(
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TRY_CAST(q.tprice AS NUMERIC(20,5)),
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TRY_CAST(q.last_price_norm AS NUMERIC(20,5)),
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TRY_CAST(q.listprice_eff AS NUMERIC(20,5)),
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TRY_CAST(q.last_date AS DATE),
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--allowable price drop percent
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.95,
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--cap on last price
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1.0,
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--cap on list percent
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1.0
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) a;
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--------------------------------------------------------------------------------
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-- Step 8: Assemble structured 'expl' JSON from populated columns.
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@ -438,6 +452,8 @@ BEGIN
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,q.list_relevance AS list_relevance
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,q.guidance_price AS guidance_price
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,q.guidance_reason AS guidance_reason
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,q.approval_price AS approval_price
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,q.approval_reason AS approval_reason
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-- JSON_QUERY(hist) AS [history]
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FOR JSON PATH, WITHOUT_ARRAY_WRAPPER
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)
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